{"id":12310,"date":"2026-01-14T07:03:23","date_gmt":"2026-01-14T07:03:23","guid":{"rendered":"https:\/\/withcode.tech\/media\/?p=12310"},"modified":"2026-02-20T07:18:08","modified_gmt":"2026-02-20T07:18:08","slug":"css_scroll","status":"publish","type":"post","link":"https:\/\/withcode.tech\/media\/css_scroll\/","title":{"rendered":"\u3010\u6700\u65b0\u7248\u3011CSS\u30b9\u30af\u30ed\u30fc\u30eb\u9023\u52d5\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\uff5cJavaScript\u4e0d\u8981\u306e\u6b21\u4e16\u4ee3\u5b9f\u88c5\u65b9\u6cd5\u3092\u89e3\u8aac"},"content":{"rendered":"<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-14.40.37.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u30b9\u30af\u30ed\u30fc\u30eb\u306b\u5fdc\u3058\u3066\u30d5\u30a7\u30fc\u30c9\u30a4\u30f3\u3084\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u3092\u5b9f\u88c5\u3057\u305f\u3044\u3093\u3067\u3059\u304c\u3001JavaScript\u30e9\u30a4\u30d6\u30e9\u30ea\u3060\u3068\u30da\u30fc\u30b8\u304c\u91cd\u304f\u306a\u3063\u3066\u2026\u3002\u3082\u3063\u3068\u8efd\u91cf\u306a\u65b9\u6cd5\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.11.23.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u305d\u308c\u306a\u3089\u6717\u5831\u3058\u3083\uff01CSS\u306e\u65b0\u3057\u3044\u300cScroll-driven Animations API\u300d\u3092\u4f7f\u3048\u3070\u3001JavaScript\u306a\u3057\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u304c\u4f5c\u308c\u308b\u305e\u3044\u3002\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3082\u5927\u5e45\u6539\u5584\u3067\u3001Core Web Vitals\u306b\u3082\u512a\u3057\u3044\u3093\u3058\u3083\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-14.48.08.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u305d\u3046\u3044\u3046\u65b9\u6cd5\u3082\u3042\u308b\u3093\u3067\u3059\u306d\uff01\u305c\u3072\u6559\u3048\u3066\u304f\u3060\u3055\u3044\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<p>Web\u5236\u4f5c\u306e\u73fe\u5834\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u60a9\u307f\u3092\u62b1\u3048\u3066\u3044\u307e\u305b\u3093\u304b\uff1f<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>jQuery\u3084GSAP\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u304c\u30da\u30fc\u30b8\u3092\u91cd\u304f\u3057\u3066\u3044\u308b<\/li>\n\n\n\n<li>Intersection Observer\u306e\u5b9f\u88c5\u304c\u8907\u96d1\u3067\u4fdd\u5b88\u304c\u5927\u5909<\/li>\n\n\n\n<li>\u30b9\u30af\u30ed\u30fc\u30eb\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u3067\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u60aa\u5316<\/li>\n\n\n\n<li>Core Web Vitals\uff08CLS\u3001LCP\uff09\u306e\u30b9\u30b3\u30a2\u304c\u60aa\u3044<\/li>\n\n\n\n<li>JavaScript\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u3084\u30d0\u30f3\u30c9\u30eb\u30b5\u30a4\u30ba\u304c\u8ab2\u984c<\/li>\n<\/ul>\n\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">CSS Scroll-driven Animations API\u3092\u6d3b\u7528\u3057\u3066\u3001JavaScript\u306a\u3057\u3067\u9ad8\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306a\u30b9\u30af\u30ed\u30fc\u30eb\u9023\u52d5\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5<\/span><\/strong>\u3092\u5fb9\u5e95\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_announce\">\u300c\u5b66\u7fd2\u2192\u6848\u4ef6\u7372\u5f97\u300d\u306b\u3064\u306a\u3052\u305f\u53d7\u8b1b\u751f\u306e\u30ea\u30a2\u30eb\u306a\u4f53\u9a13\u8ac7\u3082\u516c\u958b\u4e2d\uff01<br>\u50cd\u304d\u65b9\u3092\u5909\u3048\u305f\u3044\u65b9\u306b\u3082\u97ff\u304f\u30b9\u30c8\u30fc\u30ea\u30fc\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_info\"><strong>\u7247\u5c71\u3055\u3093<\/strong><br>\u598a\u5a20\u3092\u304d\u3063\u304b\u3051\u306b\u3001\u5b50\u3069\u3082\u306e\u305f\u3081\u306b\u3082\u3069\u3053\u3067\u3082\u50cd\u3051\u308b\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u4ed8\u3051\u305f\u3044\u3068\u8003\u3048\u308b\u3002\u305d\u3053\u3067\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u30b9\u30af\u30fc\u30eb\u306efamm\u30671\u30f6\u6708\u9593Web\u5236\u4f5c\u306e\u52c9\u5f37\u3092\u958b\u59cb\u3002\u305d\u306e\u5f8c\u3001\u72ec\u5b66\u3067\u52c9\u5f37\u306b\u52b1\u3080\u3082\u9650\u754c\u3092\u611f\u3058\u3001\u6848\u4ef6\u4fdd\u8a3c\u304c\u9b45\u529b\u306eWithCode\u3078\u5165\u5b66\u3057\u3001\u7a3c\u3052\u308b\u529b\u3092\u8eab\u306b\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u305f\u3002\u73fe\u5728\u306f\u526f\u696d\u3068\u3057\u3066\u7a3c\u3050\u529b\u3092\u8eab\u306b\u4ed8\u3051\u300110\u4ef6\u4ee5\u4e0a\u306e\u6848\u4ef6\u3092\u62c5\u5f53\u3059\u308b\u307e\u3067\u306b\u6210\u9577\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u8a73\u3057\u304f\u306f<a href=\"https:\/\/withcode.tech\/media\/interview_7\/\" title=\"\">\u3053\u3061\u3089\u306e\u8a18\u4e8b<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-withcode-media wp-block-embed-withcode-media\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/withcode.tech\/media\/interview_7\/\n<\/div><\/figure>\n\n\n\n<p class=\"is-style-balloon_box2\"><strong>\u7247\u5c71\u3055\u3093\u306e\u4e3b\u306a\u5236\u4f5c\u5b9f\u7e3e\u306f\u3053\u3061\u3089<\/strong><\/p>\n\n\n<div class=\"swell-block-postLink\">\t\t\t<div class=\"p-blogCard -external\" data-type=\"type3\" data-onclick=\"clickLink\">\n\t\t\t\t<div class=\"p-blogCard__inner\">\n\t\t\t\t\t<span class=\"p-blogCard__caption\">\u4fe1\u7528\u529b\u30a2\u30c3\u30d7\u3092\u76ee\u7684\u306b\u3057\u305f\u65b0\u898fHP\u5236\u4f5c<\/span>\n\t\t\t\t\t<div class=\"p-blogCard__thumb c-postThumb\"><figure class=\"c-postThumb__figure\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/08\/\u540d\u79f0\u672a\u8a2d\u5b9a\u306e\u30c7\u30b6\u30a4\u30f3-6.webp\" alt=\"\" class=\"c-postThumb__img u-obf-cover\" width=\"320\" height=\"180\"><\/figure><\/div>\t\t\t\t\t<div class=\"p-blogCard__body\">\n\t\t\t\t\t\t<a class=\"p-blogCard__title\" href=\"https:\/\/withcode.tech\/works\/kaburaya\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u682a\u5f0f\u4f1a\u793e\u304b\u3076\u3089\u3084 \u69d8<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n<div class=\"swell-block-postLink\">\t\t\t<div class=\"p-blogCard -external\" data-type=\"type3\" data-onclick=\"clickLink\">\n\t\t\t\t<div class=\"p-blogCard__inner\">\n\t\t\t\t\t<span class=\"p-blogCard__caption\">\u4f01\u696d\u30d6\u30e9\u30f3\u30c7\u30a3\u30f3\u30b0\u5411\u4e0a\u3092\u76ee\u7684\u306b\u3057\u305f\u65b0\u898fHP\u5236\u4f5c<\/span>\n\t\t\t\t\t<div class=\"p-blogCard__thumb c-postThumb\"><figure class=\"c-postThumb__figure\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/08\/\u5236\u4f5c\u5b9f\u7e3e-pc-3.webp\" alt=\"\" class=\"c-postThumb__img u-obf-cover\" width=\"320\" height=\"180\"><\/figure><\/div>\t\t\t\t\t<div class=\"p-blogCard__body\">\n\t\t\t\t\t\t<a class=\"p-blogCard__title\" href=\"https:\/\/withcode.tech\/works\/sollis_entertainment\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u682a\u5f0f\u4f1a\u793eSOLIS \u69d8<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u306a\u305c\u4eca\u3001CSS\u30b9\u30af\u30ed\u30fc\u30eb\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306a\u306e\u304b\uff1f<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/ChatGPT-Image-2026\u5e742\u67088\u65e5-19_17_51.jpg\" alt=\"\" class=\"wp-image-12416\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/ChatGPT-Image-2026\u5e742\u67088\u65e5-19_17_51.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/ChatGPT-Image-2026\u5e742\u67088\u65e5-19_17_51-768x512.jpg 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">\u5f93\u6765\u306eJavaScript\u5b9f\u88c5\u306e\u8ab2\u984c<\/h3>\n\n\n\n<p>\u3053\u308c\u307e\u3067\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u9023\u52d5\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u88c5\u3059\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u65b9\u6cd5\u304c\u4e00\u822c\u7684\u3067\u3057\u305f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>jQuery\u30d7\u30e9\u30b0\u30a4\u30f3\uff1a<\/strong> `$(window).scroll()`\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u4f4d\u7f6e\u3092\u76e3\u8996<\/li>\n\n\n\n<li><strong>GSAP ScrollTrigger\uff1a<\/strong> \u9ad8\u6a5f\u80fd\u3060\u304c\u30d0\u30f3\u30c9\u30eb\u30b5\u30a4\u30ba\u5927\uff08\u6570\u767eKB\uff09<\/li>\n\n\n\n<li><strong>Intersection Observer API\uff1a<\/strong> JavaScript\u3067\u8981\u7d20\u306e\u8868\u793a\u5224\u5b9a<\/li>\n\n\n\n<li><strong>Lenis \/ Locomotive Scroll\uff1a<\/strong> \u30b9\u30e0\u30fc\u30b9\u30b9\u30af\u30ed\u30fc\u30eb\uff0b\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3<\/li>\n<\/ol>\n\n\n\n<p>\u3057\u304b\u3057\u3001\u3053\u308c\u3089\u306e\u65b9\u6cd5\u306b\u306f<strong><span class=\"swl-marker mark_yellow\">\u5171\u901a\u306e\u554f\u984c<\/span><\/strong>\u304c\u3042\u308a\u307e\u3057\u305f\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u5b9f\u88c5\u65b9\u6cd5<\/th><th>\u4e3b\u306a\u8ab2\u984c<\/th><th>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5f71\u97ff<\/th><\/tr><\/thead><tbody><tr><td>jQuery\u30d7\u30e9\u30b0\u30a4\u30f3<\/td><td>\u6bce\u30d5\u30ec\u30fc\u30e0DOM\u518d\u63cf\u753b\u3001\u30e1\u30e2\u30ea\u30ea\u30fc\u30af<\/td><td>FPS\u4f4e\u4e0b\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u30ab\u30af\u3064\u304d<\/td><\/tr><tr><td>GSAP ScrollTrigger<\/td><td>\u30d0\u30f3\u30c9\u30eb\u30b5\u30a4\u30ba\u5927\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u4f9d\u5b58<\/td><td>\u521d\u56de\u8aad\u307f\u8fbc\u307f\u9045\u5ef6\u3001LCP\u60aa\u5316<\/td><\/tr><tr><td>Intersection Observer<\/td><td>\u8907\u96d1\u306a\u30b3\u30fc\u30c9\u3001\u7d30\u304b\u3044\u5236\u5fa1\u56f0\u96e3<\/td><td>\u6bd4\u8f03\u7684\u826f\u597d\uff08\u30bf\u30a4\u30df\u30f3\u30b0\u9650\u5b9a\uff09<\/td><\/tr><tr><td>Lenis\/Locomotive<\/td><td>\u30cd\u30a4\u30c6\u30a3\u30d6\u30b9\u30af\u30ed\u30fc\u30eb\u4e0a\u66f8\u304d\u3001\u7af6\u5408<\/td><td>\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u554f\u984c<\/td><\/tr><tr><td><strong>CSS Scroll-driven<\/strong><\/td><td><strong>\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc\u4e2d\uff08\u6bb5\u968e\u7684\u5f37\u5316\uff09<\/strong><\/td><td><strong>\u25ce\uff08GPU\u6700\u9069\u5316\u3001\u30ea\u30d5\u30ed\u30fc\u306a\u3057\uff09<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">CSS Scroll-driven Animations API\u304c\u3082\u305f\u3089\u3059\u9769\u65b0<\/h3>\n\n\n\n<p>CSS Scroll-driven Animations API\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">W3C\u6a19\u6e96\u4ed5\u69d8<\/span><\/strong>\u3068\u3057\u30662023\u5e74\u306bChrome 115\u3067\u6b63\u5f0f\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305f\u65b0\u6280\u8853\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>JavaScript\u30bc\u30ed\uff1a<\/strong> CSS\u306e\u307f\u3067\u5b8c\u7d50\u3001\u30d0\u30f3\u30c9\u30eb\u30b5\u30a4\u30ba\u524a\u6e1b<\/li>\n\n\n\n<li><strong>GPU\u6700\u9069\u5316\uff1a<\/strong> \u30d6\u30e9\u30a6\u30b6\u306eCompositor Thread\u3067\u5b9f\u884c\u3001\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u306a\u3057<\/li>\n\n\n\n<li><strong>\u5ba3\u8a00\u7684\u8a18\u8ff0\uff1a<\/strong> `animation-timeline`\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u76f4\u611f\u7684\u306b\u5236\u5fa1<\/li>\n\n\n\n<li><strong>Core Web Vitals\u6539\u5584\uff1a<\/strong> CLS\u3001LCP\u3001INP\u3059\u3079\u3066\u306b\u30dd\u30b8\u30c6\u30a3\u30d6\u5f71\u97ff<\/li>\n\n\n\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u5bb9\u6613\uff1a<\/strong> DevTools\u306eAnimation\u30bf\u30d6\u3067\u53ef\u8996\u5316<\/li>\n\n\n\n<li><strong>Progressive Enhancement\uff1a<\/strong> \u975e\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u3067\u3082\u6bb5\u968e\u7684\u306b\u5b9f\u88c5\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5b9a\u91cf\u6bd4\u8f03<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u6307\u6a19<\/th><th>jQuery scroll()<\/th><th>GSAP ScrollTrigger<\/th><th>CSS Scroll-driven<\/th><\/tr><\/thead><tbody><tr><td><strong>\u30d0\u30f3\u30c9\u30eb\u30b5\u30a4\u30ba<\/strong><\/td><td>jQuery 87KB + \u30d7\u30e9\u30b0\u30a4\u30f3<\/td><td>GSAP 47KB + ST 12KB<\/td><td><strong>0KB<\/strong><\/td><\/tr><tr><td><strong>FPS\uff0860fps\u3092\u57fa\u6e96\uff09<\/strong><\/td><td>30\u301c45fps<\/td><td>55\u301c60fps<\/td><td><strong>60fps\u5b89\u5b9a<\/strong><\/td><\/tr><tr><td><strong>\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u5360\u6709<\/strong><\/td><td>20\u301c30%<\/td><td>5\u301c10%<\/td><td><strong>0%\uff08Compositor\uff09<\/strong><\/td><\/tr><tr><td><strong>LCP\u5f71\u97ff<\/strong><\/td><td>+800ms\u301c1.2s<\/td><td>+300\u301c500ms<\/td><td><strong>+0ms\uff08\u9045\u5ef6\u306a\u3057\uff09<\/strong><\/td><\/tr><tr><td><strong>CLS\u767a\u751f\u7387<\/strong><\/td><td>\u9ad8\uff08Layout\u518d\u8a08\u7b97\uff09<\/td><td>\u4e2d\uff08\u6700\u9069\u5316\u6b21\u7b2c\uff09<\/td><td><strong>\u4f4e\uff08transform\/opacity\uff09<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5c0f\u301c\u4e2d\u898f\u6a21\u30b5\u30a4\u30c8\u3067\u306f\u3001JavaScript\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5b8c\u5168\u306b\u7f6e\u304d\u63db\u3048\u53ef\u80fd\u3002\u5927\u898f\u6a21\u30b5\u30a4\u30c8\u3067\u3082\u3001\u57fa\u672c\u7684\u306a\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306fCSS\u3067\u5b9f\u88c5\u3057\u3001\u8907\u96d1\u306a\u5236\u5fa1\u306e\u307fJS\u3092\u4f75\u7528\u3059\u308b<strong><span class=\"swl-marker mark_yellow\">\u300c\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u6226\u7565\u300d\u304c\u63a8\u5968<\/span><\/strong>\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.00.55.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u306a\u308b\u307b\u3069\uff01\u4eca\u307e\u3067\u306fJavaScript\u3067\u9811\u5f35\u3063\u3066\u305f\u3051\u3069\u3001<br>\u5b9f\u306f\u305d\u308c\u304c\u91cd\u3055\u306e\u539f\u56e0\u3060\u3063\u305f\u3093\u3067\u3059\u306d\u3002<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.09.27.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u305d\u306e\u901a\u308a\u3058\u3083\u3002<br>\u6bce\u30d5\u30ec\u30fc\u30e0DOM\u3092\u89e6\u308b\u69cb\u9020\u81ea\u4f53\u304c\u3001\u3082\u3046\u6642\u4ee3\u9045\u308c\u306b\u306a\u308a\u3064\u3064\u3042\u308b\u306e\u3058\u3083\u3002<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">CSS Scroll-driven Animations API\u306e\u57fa\u790e<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/CSS\u30b9\u30af\u30ed\u30fc\u30eb\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u30c7\u30e2.jpg\" alt=\"\" class=\"wp-image-12417\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/CSS\u30b9\u30af\u30ed\u30fc\u30eb\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u30c7\u30e2.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/CSS\u30b9\u30af\u30ed\u30fc\u30eb\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u30c7\u30e2-768x512.jpg 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">2\u3064\u306e\u6838\u3068\u306a\u308b\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3<\/h3>\n\n\n\n<p>CSS Scroll-driven Animations API\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">2\u7a2e\u985e\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3<\/span><\/strong>\u3092\u63d0\u4f9b\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. Scroll Progress Timeline\uff08scroll()\u95a2\u6570\uff09<\/h4>\n\n\n\n<p>\u30da\u30fc\u30b8\u5168\u4f53\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u91cf\u3092\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u9032\u884c\u5ea6\u3068\u3057\u3066\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u69cb\u6587 *\/\nanimation-timeline: scroll([&lt;scroller&gt;] [&lt;axis&gt;]);\n\n\/* \u4f8b *\/\n.progress-bar {\n  animation: grow 1s linear;\n  animation-timeline: scroll(root block); \/* \u30eb\u30fc\u30c8\u8981\u7d20\u306e\u5782\u76f4\u30b9\u30af\u30ed\u30fc\u30eb *\/\n}<\/code><\/pre><\/div>\n\n\n\n<p><strong>\u30d1\u30e9\u30e1\u30fc\u30bf\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>`<scroller>`<\/strong> &#8211; \u30b9\u30af\u30ed\u30fc\u30eb\u5bfe\u8c61\n  &#8211; `root`\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\uff09: \u30da\u30fc\u30b8\u5168\u4f53\n  &#8211; `nearest`: \u6700\u3082\u8fd1\u3044\u30b9\u30af\u30ed\u30fc\u30eb\u30b3\u30f3\u30c6\u30ca\n  &#8211; `self`: \u8981\u7d20\u81ea\u8eab<\/li>\n\n\n\n<li><strong>`<axis>`<\/strong> &#8211; \u30b9\u30af\u30ed\u30fc\u30eb\u65b9\u5411\n  &#8211; `block`\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\uff09: \u5782\u76f4\u65b9\u5411\n  &#8211; `inline`: \u6c34\u5e73\u65b9\u5411\n  &#8211; `y`, `x`: \u660e\u793a\u7684\u306a\u8ef8\u6307\u5b9a<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. View Progress Timeline\uff08view()\u95a2\u6570\uff09<\/h4>\n\n\n\n<p>\u7279\u5b9a\u8981\u7d20\u306e\u753b\u9762\u5185\u8868\u793a\u7bc4\u56f2\u3092\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3068\u3057\u3066\u6d3b\u7528\u3057\u307e\u3059\u3002\u8981\u7d20\u304c\u753b\u9762\u306b\u300c\u5165\u308b\u2192\u8868\u793a\u4e2d\u2192\u51fa\u308b\u300d\u306e\u9032\u884c\u5ea6\u3067\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u5236\u5fa1\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u69cb\u6587 *\/\nanimation-timeline: view([&lt;axis&gt;] [&lt;view-timeline-inset&gt;]);\n\n\/* \u4f8b *\/\n.fade-in-item {\n  animation: fadeIn 1s linear;\n  animation-timeline: view(block); \/* \u8981\u7d20\u306e\u8868\u793a\u7bc4\u56f2 *\/\n  animation-range: entry 0% entry 100%; \/* \u753b\u9762\u306b\u5165\u308b\u77ac\u9593\u306e\u307f *\/\n}<\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e3b\u8981\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5b8c\u5168\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">animation-timeline<\/h4>\n\n\n\n<p>\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u9032\u884c\u5ea6\u3092\u5236\u5fa1\u3059\u308b\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u5024 *\/\nanimation-timeline: auto;              \/* \u901a\u5e38\u306e\u6642\u9593\u30d9\u30fc\u30b9 *\/\nanimation-timeline: scroll();          \/* \u30da\u30fc\u30b8\u30b9\u30af\u30ed\u30fc\u30eb *\/\nanimation-timeline: view();            \/* \u8981\u7d20\u306e\u8868\u793a\u7bc4\u56f2 *\/\nanimation-timeline: scroll(root block); \/* \u30eb\u30fc\u30c8\u5782\u76f4\u30b9\u30af\u30ed\u30fc\u30eb *\/\nanimation-timeline: view(inline 20px); \/* \u6c34\u5e73\u300120px\u30aa\u30d5\u30bb\u30c3\u30c8 *\/<\/code><\/pre><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">animation-range<\/h4>\n\n\n\n<p>\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u5b9f\u884c\u306e<strong><span class=\"swl-marker mark_yellow\">\u958b\u59cb\u4f4d\u7f6e\u3068\u7d42\u4e86\u4f4d\u7f6e<\/span><\/strong>\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002`view()`\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u8981\u7d20\u304c\u753b\u9762\u5185\u306e\u3069\u3053\u304b\u3089\u3069\u3053\u307e\u3067\u3092\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u7bc4\u56f2\u3068\u3059\u308b\u304b\u5236\u5fa1\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u5024\u306e\u7a2e\u985e *\/\nanimation-range: normal;                    \/* \u5168\u7bc4\u56f2\uff080%\u301c100%\uff09 *\/\nanimation-range: cover 0% cover 100%;       \/* \u8981\u7d20\u304c\u5b8c\u5168\u306b\u8986\u308f\u308c\u3066\u3044\u308b\u7bc4\u56f2 *\/\nanimation-range: entry 0% entry 100%;       \/* \u8981\u7d20\u304c\u5165\u3063\u3066\u304f\u308b\u7bc4\u56f2 *\/\nanimation-range: exit 0% exit 100%;         \/* \u8981\u7d20\u304c\u51fa\u3066\u3044\u304f\u7bc4\u56f2 *\/\nanimation-range: entry 25% exit 75%;        \/* \u5165\u308b25%\u304b\u3089\u51fa\u308b75%\u307e\u3067 *\/\n\n\/* \u540d\u524d\u4ed8\u304d\u7bc4\u56f2 *\/\nentry    : \u8981\u7d20\u304c\u753b\u9762\u306b\u5165\u308a\u59cb\u3081\u3066\u304b\u3089\u5b8c\u5168\u306b\u8868\u793a\u3055\u308c\u308b\u307e\u3067\ncover    : \u8981\u7d20\u304c\u5b8c\u5168\u306b\u753b\u9762\u5185\u306b\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u7bc4\u56f2\nexit     : \u8981\u7d20\u304c\u753b\u9762\u304b\u3089\u51fa\u59cb\u3081\u3066\u304b\u3089\u5b8c\u5168\u306b\u6d88\u3048\u308b\u307e\u3067\ncontain  : \u8981\u7d20\u304c\u5b8c\u5168\u306b\u753b\u9762\u5185\u306b\u53ce\u307e\u3063\u3066\u3044\u308b\u7bc4\u56f2<\/code><\/pre><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">scroll-timeline \/ view-timeline\uff08\u975e\u63a8\u5968\u306e\u53e4\u3044\u69cb\u6587\uff09<\/h4>\n\n\n\n<p>\u521d\u671f\u306e\u4ed5\u69d8\u3067\u306f\u500b\u5225\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3057\u305f\u304c\u3001\u73fe\u5728\u306f`animation-timeline`\u306b\u7d71\u5408\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u53e4\u3044\u69cb\u6587\uff08\u975e\u63a8\u5968\uff09 *\/\nscroll-timeline-name: my-timeline;\nscroll-timeline-axis: block;\nanimation-timeline: my-timeline;\n\n\/* \u65b0\u3057\u3044\u69cb\u6587\uff08\u63a8\u5968\uff09 *\/\nanimation-timeline: scroll(root block);<\/code><\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.00.55.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u6700\u521d\u306f\u96e3\u3057\u305d\u3046\u3060\u3063\u305f\u3051\u3069\u3001<br>\u300c\u30b9\u30af\u30ed\u30fc\u30eb\u57fa\u6e96\u300d\u3068\u300c\u8868\u793a\u4f4d\u7f6e\u57fa\u6e96\u300d\u3063\u3066\u8003\u3048\u308b\u3068\u5206\u304b\u308a\u3084\u3059\u3044\u3067\u3059\u306d\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.12.07.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u305d\u3046\u3058\u3083\u3002<br>\u3053\u306e2\u3064\u3092\u7406\u89e3\u3067\u304d\u308c\u3070\u3001\u3082\u3046\u534a\u5206\u306f\u7fd2\u5f97\u3057\u305f\u3088\u3046\u306a\u3082\u306e\u3058\u3083<\/strong>\uff01<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u5b9f\u8df5\u30b3\u30fc\u30c9\u306e\u3088\u304f\u3042\u308b\u30d1\u30bf\u30fc\u30f35\u9078<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/ChatGPT-Image-2026\u5e742\u670815\u65e5-19_34_42.jpg\" alt=\"\" class=\"wp-image-12517\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/ChatGPT-Image-2026\u5e742\u670815\u65e5-19_34_42.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/ChatGPT-Image-2026\u5e742\u670815\u65e5-19_34_42-768x512.jpg 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.11.23.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3053\u3053\u3067\u306f\u3001\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u305d\u306e\u307e\u307e\u4f7f\u3048\u308b\u3001\u5b8c\u6210\u5ea6\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u4f8b\u3092\u7d39\u4ecb\u3059\u308b\u305e\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u30d1\u30bf\u30fc\u30f31: \u30b9\u30af\u30ed\u30fc\u30eb\u30d7\u30ed\u30b0\u30ec\u30b9\u30d0\u30fc<\/h3>\n\n\n\n<p>\u30da\u30fc\u30b8\u4e0a\u90e8\u306b\u56fa\u5b9a\u8868\u793a\u3055\u308c\u308b\u3001\u8aad\u4e86\u9032\u6357\u3092\u793a\u3059\u30d7\u30ed\u30b0\u30ec\u30b9\u30d0\u30fc\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"xbOBbLv\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/xbOBbLv\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d1\u30bf\u30fc\u30f32: \u30d5\u30a7\u30fc\u30c9\u30a4\u30f3\uff0b\u30b9\u30e9\u30a4\u30c9\u30a2\u30c3\u30d7<\/h3>\n\n\n\n<p>\u8981\u7d20\u304c\u753b\u9762\u306b\u5165\u3063\u305f\u3089\u3001\u4e0b\u304b\u3089\u4e0a\u306b\u30d5\u30a7\u30fc\u30c9\u30a4\u30f3\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"wBWOBNm\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/wBWOBNm\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d1\u30bf\u30fc\u30f33: \u30d1\u30e9\u30e9\u30c3\u30af\u30b9\uff08\u80cc\u666f\u56fa\u5b9a\u30fb\u524d\u666f\u30b9\u30af\u30ed\u30fc\u30eb\uff09<\/h3>\n\n\n\n<p>\u80cc\u666f\u753b\u50cf\u3092\u56fa\u5b9a\u3057\u3001\u524d\u666f\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u30b9\u30af\u30ed\u30fc\u30eb\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u7acb\u4f53\u611f\u3092\u6f14\u51fa\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"PwzLwgE\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/PwzLwgE\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d1\u30bf\u30fc\u30f34: \u6a2a\u30b9\u30af\u30ed\u30fc\u30eb\u30ae\u30e3\u30e9\u30ea\u30fc<\/h3>\n\n\n\n<p>\u7e26\u30b9\u30af\u30ed\u30fc\u30eb\u306b\u5fdc\u3058\u3066\u3001\u6a2a\u65b9\u5411\u306b\u30b9\u30e9\u30a4\u30c9\u3059\u308b\u30ae\u30e3\u30e9\u30ea\u30fc\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"NPrmXow\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/NPrmXow\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d1\u30bf\u30fc\u30f35: \u30b9\u30c6\u30a3\u30c3\u30ad\u30fc\u30d8\u30c3\u30c0\u30fc\u306e\u80cc\u666f\u900f\u660e\u5ea6\u5909\u5316<\/h3>\n\n\n\n<p>\u30b9\u30af\u30ed\u30fc\u30eb\u306b\u5fdc\u3058\u3066\u3001\u30d8\u30c3\u30c0\u30fc\u306e\u80cc\u666f\u304c\u4e0d\u900f\u660e\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"bNeJLGa\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/bNeJLGa\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.00.55.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong><strong>\u30d7\u30ed\u30b0\u30ec\u30b9\u30d0\u30fc<\/strong>\u3082\u3001\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u3082\u3001\u30d5\u30a7\u30fc\u30c9\u30a4\u30f3\u3082<br>\u5168\u90e8CSS\u3067\u3044\u3051\u308b\u3093\u3067\u3059\u306d\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.12.07.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u305d\u3046\u3058\u3083\uff01<br>\u3057\u304b\u3082\u69cb\u9020\u306f\u610f\u5916\u3068\u30b7\u30f3\u30d7\u30eb\u3058\u3083\u308d\uff1f<br>\u3053\u308c\u304b\u3089\u306f\u201c\u8efd\u304f\u3066\u3001\u7d20\u76f4\u306a\u5b9f\u88c5\u201d\u3092\u9078\u3079\u308b\u8005\u304c\u5f37\u304f\u306a\u308b\u306e\u3058\u3083\u3088\u3002<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc\u72b6\u6cc1\u3068Polyfil<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/ChatGPT-Image-2026\u5e742\u670813\u65e5-19_49_59.jpg\" alt=\"\" class=\"wp-image-12512\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/ChatGPT-Image-2026\u5e742\u670813\u65e5-19_49_59.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/01\/ChatGPT-Image-2026\u5e742\u670813\u65e5-19_49_59-768x512.jpg 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u4e00\u89a7\uff082026\u5e741\u6708\u6642\u70b9\uff09<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30d6\u30e9\u30a6\u30b6<\/th><th>\u5bfe\u5fdc\u72b6\u6cc1<\/th><th>\u30d0\u30fc\u30b8\u30e7\u30f3<\/th><th>\u6ce8\u610f\u70b9<\/th><\/tr><\/thead><tbody><tr><td>Chrome<\/td><td>\u5b8c\u5168\u5bfe\u5fdc<\/td><td>115+<\/td><td>2023\u5e748\u6708\u30ea\u30ea\u30fc\u30b9<\/td><\/tr><tr><td>Edge<\/td><td>\u5b8c\u5168\u5bfe\u5fdc<\/td><td>115+<\/td><td>Chromium\u30d9\u30fc\u30b9<\/td><\/tr><tr><td>Opera<\/td><td>\u5b8c\u5168\u5bfe\u5fdc<\/td><td>101+<\/td><td>Chromium\u30d9\u30fc\u30b9<\/td><\/tr><tr><td>Safari<\/td><td>\u90e8\u5206\u5bfe\u5fdc<\/td><td>17.5+ (iOS 17.5+)<\/td><td>\u4e00\u90e8\u6a5f\u80fd\u5236\u9650\u3042\u308a<\/td><\/tr><tr><td>Firefox<\/td><td>\u8a66\u9a13\u5b9f\u88c5<\/td><td>Nightly build<\/td><td>layout.css.scroll-driven-animations.enabled\u30d5\u30e9\u30b0<\/td><\/tr><tr><td>Samsung Internet<\/td><td>\u5b8c\u5168\u5bfe\u5fdc<\/td><td>23+<\/td><td>Chromium\u30d9\u30fc\u30b9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u5e02\u5834\u30b7\u30a7\u30a2\u8003\u616e\uff1a<\/strong> Chrome\u7cfb\u30d6\u30e9\u30a6\u30b6\uff08Chrome\u3001Edge\u3001Opera\u3001Samsung\uff09\u3067\u7d0475%\u3092\u30ab\u30d0\u30fc\u3002Safari\u306e\u90e8\u5206\u5bfe\u5fdc\u306b\u3088\u308a\u3001\u5b9f\u8cea<strong><span class=\"swl-marker mark_yellow\">90%\u4ee5\u4e0a\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u5229\u7528\u53ef\u80fd<\/span><\/strong>\u3067\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-14.48.08.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u306a\u308b\u307b\u3069\uff01JavaScript\u3092\u4f7f\u308f\u306a\u304f\u3066\u3082\u3001CSS\u3060\u3051\u3067\u3053\u3053\u307e\u3067\u3067\u304d\u308b\u3093\u3067\u3059\u306d\u3002\u6b63\u76f4\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3063\u3066\u96e3\u3057\u3044\u3082\u306e\u3060\u3068\u601d\u3063\u3066\u307e\u3057\u305f\u3002<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.12.07.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u305d\u3046\u611f\u3058\u308b\u4eba\u306f\u591a\u3044\u306e\u3046\u3002\u3067\u3082\u6700\u8fd1\u306f\u3001animation-timeline \u3084 view-timeline \u306e\u767b\u5834\u3067\u3001CSS\u3060\u3051\u3067\u3082\u304b\u306a\u308a\u8868\u73fe\u306e\u5e45\u304c\u5e83\u304c\u3063\u3066\u304d\u305f\u3093\u3058\u3083\u3002\u3053\u308c\u3092\u6d3b\u7528\u3057\u306a\u3044\u624b\u306f\u306a\u3044\u306e\u3046\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.06.05.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3057\u304b\u3082\u8efd\u304f\u3066\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3082\u826f\u3044\u3063\u3066\u3001\u304b\u306a\u308a\u9b45\u529b\u7684\u3067\u3059\u306d\u3002\u5b9f\u52d9\u3067\u3082\u4f7f\u3048\u305d\u3046\u3067\u3059\uff01\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001JavaScript\u306a\u3057\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u9023\u52d5\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-big_icon_point\"><strong>\u30fbCSS Scroll-driven Animations API\u3092\u4f7f\u3048\u3070JavaScript\u306a\u3057\u3067\u4f5c\u6210\u3067\u304d\u308b\u3002<\/strong><br><strong>\u30fbScroll Progress Timeline\u3068View Progress Timeline\u306e2\u7a2e\u985e\u304c\u3042\u308b<\/strong><br>\u30fb<strong>\u30d6\u30e9\u30a6\u30b6\u306b\u306f\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3082\u306e\u304c\u591a\u3044\u304c\u3001\u5b9f\u9a13\u6bb5\u968e\u306e\u3082\u306e\u3082\u3042\u308b<\/strong><\/p>\n\n\n\n<p>\u3053\u308c\u3092\u6a5f\u306b\u3001\u305c\u3072\u6d3b\u7528\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"index_id17\">WithCode\u3092\u4f53\u9a13\u3067\u304d\u308b\u521d\u7d1a\u30b3\u30fc\u30b9\u516c\u958b\u4e2d\uff01<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"600\" height=\"500\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/04\/\u30d0\u30ca\u30fc_300\u00d7250_20240425.png\" alt=\"\" class=\"wp-image-2650\"\/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">\u521d\u7d1a\u30b3\u30fc\u30b9(\u00a549,800)\u304c\u5b8c\u5168\u7121\u6599\u306b\uff01<\/h3>\n\n\n\n<ul 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class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/withcode.tech\/reservation\/\" style=\"background-color:#ffbf00\"><strong>\u516c\u5f0f\u30b5\u30a4\u30c8\u304b\u3089\u7121\u6599\u30ab\u30a6\u30f3\u30bb\u30ea\u30f3\u30b0\u306b\u7533\u3057\u8fbc\u3080<\/strong> <strong>\u2192<\/strong><\/a><\/div>\n<\/div>\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Web\u5236\u4f5c\u306e\u73fe\u5834\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u60a9\u307f\u3092\u62b1\u3048\u3066\u3044\u307e\u305b\u3093\u304b\uff1f \u672c\u8a18\u4e8b\u3067\u306f\u3001CSS Scroll-driven Animations API\u3092\u6d3b\u7528\u3057\u3066\u3001JavaScript\u306a\u3057\u3067\u9ad8\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306a\u30b9\u30af\u30ed\u30fc\u30eb\u9023\u52d5\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092 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