{"id":53554,"date":"2024-07-02T23:06:51","date_gmt":"2024-07-03T06:06:51","guid":{"rendered":"https:\/\/www.uxpin.com\/studio\/?p=53554"},"modified":"2024-07-04T21:11:56","modified_gmt":"2024-07-05T04:11:56","slug":"responsive-images-the-designers-definitive-guide-ja","status":"publish","type":"post","link":"https:\/\/www.uxpin.com\/studio\/jp\/blog-jp\/responsive-images-the-designers-definitive-guide-ja\/","title":{"rendered":"\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u753b\u50cf \u2013 \u6c7a\u5b9a\u7248\u30ac\u30a4\u30c9"},"content":{"rendered":"\r\n
\"\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u753b\u50cf<\/figure>\r\n\r\n\r\n\r\n\r\n\r\n

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UI\u306b\u9069\u3057\u305f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u9078\u629e<\/b><\/h2>\r\n

JPG\u3001SVG\u3001GIF\u3001PNG\uff08\u304a\u3088\u3073PNG-24\uff09\u2010 Web\u30c7\u30b6\u30a4\u30f3\u521d\u5fc3\u8005\u3060\u3068\u3001\u3053\u306e \uff13\u3064\u3092\u6df7\u540c\u3057\u3066\u3057\u307e\u3046\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u719f\u7df4\u3057\u305f\u30d9\u30c6\u30e9\u30f3\u3067\u3055\u3048\u3001SVG \u3067\u5341\u5206\u306a\u306e\u306bJPG\u3092\u9078\u3093\u3060\u308a\u3001PNG-8 \u3067\u306f\u306a\u304f PNG-24 \u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u306b\u3057\u305f\u308a\u3059\u308b\u306e\u306f\u73cd\u3057\u304f\u306a\u3044\u3067\u3059\u304b\u3089\u306d\u3002<\/span><\/p>\r\n

JPG<\/b><\/h2>\r\n

JPEG \u306f\u300cJoint Photographic Experts Group\u300d\u306e\u7565\u3067\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u8ee2\u9001\u3055\u308c\u308b\u753b\u50cf\u3092\u6a19\u6e96\u5316\u3059\u308b\u624b\u6bb5\u3068\u3057\u3066\uff11\uff19\uff19\uff11\u5e74\u306b\u958b\u767a\u3055\u308c\u3066\uff11\uff19\uff19\uff12\u5e74\u306b\u767a\u8868\u3055\u308c\u307e\u3057\u305f\u3002\u5f53\u6642\u306f\u5e2f\u57df\u5e45\u304c\u9650\u3089\u308c\u3066\u3044\u305f\u305f\u3081\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u3088\u308a\u5c11\u306a\u3044\u30d0\u30a4\u30c8\u6570\u3067\u3088\u308a\u591a\u304f\u306e\u753b\u50cf\u3092\u8868\u793a\u3067\u304d\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u597d\u3093\u3067\u3044\u307e\u3057\u305f\u3002<\/span><\/p>\r\n

JPG \u5f62\u5f0f\u306f\u975e\u53ef\u9006\u5727\u7e2e\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u4e00\u5ea6\u5727\u7e2e\u3059\u308b\u3068\u3001\u753b\u50cf\u3092\u5b8c\u5168\u306b\u5143\u306e\u54c1\u8cea\u306b\u623b\u3059\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u30020\uff5e100 \u306e\u5c3a\u5ea6\u3067\u54c1\u8cea\u304c\u843d\u3061\u308b\u4ee3\u308f\u308a\u306b\u3001\u30d5\u30a1\u30a4\u30eb\u304c\u5c0f\u3055\u304f\u306a\u308a\u307e\u3059\u304c\u3001\u5947\u5999\u306a\u3053\u3068\u306b\u3001100% JPG \u5727\u7e2e\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u54c1\u8cea\u306f\u6700\u9ad8\u3067\u3082\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306f\u6700\u60aa\u3067\u3042\u308a\u30010% \u5727\u7e2e\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306f\u6700\u5c0f\u306b\u306a\u308a\u307e\u3059\u304c\u54c1\u8cea\u306f\u6700\u60aa\u3067\u3059\u3002<\/span><\/p>\r\n\r\n\r\n\r\n

\"image01\"<\/figure>\r\n\r\n\r\n\r\n

\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8\u3068\u306f\u3001JPG \u5727\u7e2e\u306b\u3088\u3063\u3066\u30d5\u30a1\u30a4\u30eb \u30b5\u30a4\u30ba\u3092\u5c0f\u3055\u304f\u3059\u308b\u305f\u3081\u306b\u5909\u66f4\u3055\u308c\u308b\u753b\u50cf\u306e\u4e00\u90e8\u3067\u3042\u308a\u3001\u76ee\u306b\u898b\u3048\u308b\u3068\u304d\u306f\u3001\u7d04\uff12\uff10\u30d4\u30af\u30bb\u30eb\u56db\u65b9\u306e\u9818\u57df\u306b\u8272\u3092\u96c6\u3081\u305f\u304b\u306e\u3088\u3046\u306b\u3001\u5747\u4e00\u306a\u8272\u306e\u30d6\u30ed\u30c3\u30af\u306e\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002JPG\u753b\u50cf\u306f\u8907\u96d1\u306a\u753b\u50cf\u3067\u3082\u81ea\u7136\u306b\u898b\u3048\u308b\u305f\u3081\u3001\u3053\u306e\u5f62\u5f0f\u306f\u5199\u771f\u306b\u6700\u9069\u3067\u3059\u3002<\/span><\/p>\r\n

\u7d50\u8ad6<\/b>\uff1aJPG\u753b\u50cf\u306f\u3001\u5199\u771f\u306e\u3088\u3046\u306a\u30c7\u30a3\u30c6\u30fc\u30eb\u306e\u591a\u3044\u8907\u96d1\u306a\u753b\u50cf\u306b\u9069\u3057\u3066\u3044\u308b\u3002<\/span><\/p>\r\n

PNG (8-bit)<\/b><\/h2>\r\n

JPG\u3068\u306f\u7570\u306a\u308a\u3001PNG\uff08Portable Network Graphics\uff09\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3044\u3066\u518d\u4fdd\u5b58\u3057\u3066\u3082\u5727\u7e2e\u304c\u9032\u884c\u3057\u306a\u3044\u30ed\u30b9\u30ec\u30b9\u5727\u7e2e\u3092\u4f7f\u3044\u307e\u3059\u3002\u4ee3\u308f\u308a\u306b\u3001PNG-8\u30d5\u30a1\u30a4\u30eb\u306b\u306f\u3001\u4f7f\u308f\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u56fa\u6709\u306e\u8272\u306e\u30ea\u30b9\u30c8\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/span><\/p>\r\n

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\"image04\"<\/figure>\r\n\r\n\r\n\r\n

\u4f8b\u3048\u3070\u6700\u521d\u306e\uff11\uff10\uff10\u30d4\u30af\u30bb\u30eb\u304c RGB\uff08255,255,255\uff09\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u308c\u3092\u8ff0\u3079\u308b\u5fc5\u8981\u306f\u306a\u304f\u3001\u30d4\u30af\u30bb\u30eb 1\u301c500 \u304c\u30ab\u30e9\u30fc #1 \u306b\u5c5e\u3059\u308b\u3068\u8ff0\u3079\u308b\u3060\u3051\u3067\u3059\u3002\u306a\u306e\u3067\u3001PNG \u5f62\u5f0f\u306f\u5b8c\u5168\u306b\u30d5\u30e9\u30c3\u30c8\u306a\u8272\u306e\u753b\u50cf\u3092\u5727\u7e2e\u3059\u308b\u306e\u306b\u6700\u9069\u3067\u3059\u3002<\/span><\/p>\r\n

\u7d50\u8ad6<\/b>\uff1aPNG-8 \u5f62\u5f0f\u306f\u3001\u30ab\u30e9\u30fc\u30c6\u30fc\u30d6\u30eb\u3068\u547c\u3070\u308c\u308b\u30ea\u30b9\u30c8\u306b\u6700\u5927\uff12\uff15\uff16\u306e\u56fa\u6709\u306e\u8272\u3092\u4fdd\u6301\u3067\u304d\u3001\u30d4\u30af\u30bb\u30eb\u3092\u5b8c\u5168\u306b\u900f\u660e\u306b\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002\u3053\u306e\u3088\u3046\u306a\u4e8b\u5b9f\u306b\u3088\u308a\u3001PNG-8 \u306f\u4eca\u65e5\u6d41\u884c\u3057\u3066\u3044\u308b\u300c\u30d5\u30e9\u30c3\u30c8\u30ab\u30e9\u30fc\u300d\u306e\u5916\u89b3\u306b\u6700\u9069\u3002<\/span><\/p>\r\n

PNG (24-bit)<\/b><\/h2>\r\n

PNG \u306e\u4ed6\u306e\u7a2e\u985e\u3067\u3042\u308b PNG-24 \u3092\u4f7f\u3063\u305f\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u5727\u7e2e\u304c\u4f7f\u308f\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u3068\u3066\u3082\u304d\u308c\u3044\u306b\u898b\u3048\u307e\u3059\u3002\u307e\u305f\u3001\u30ab\u30e9\u30fc\u30c6\u30fc\u30d6\u30eb\u3082\u4f7f\u3044\u307e\u305b\u3093\u3002PNG-24\u30d5\u30a1\u30a4\u30eb\u3092\u4fdd\u5b58\u3059\u308b\u3068\u304d\u306f\u3001\u30c7\u30a3\u30c6\u30fc\u30eb\u304c\u9010\u4e00\u4fdd\u5b58\u3055\u308c\u307e\u3059…\u305d\u3057\u3066\u3001\u305d\u308c\u304c\u554f\u984c\u306a\u306e\u3067\u3059\u3002<\/span><\/p>\r\n

\u4e0d\u900f\u660e\u5ea6\u3082\u307e\u305f\u554f\u984c\u3067\u3059\u3002PNG-8 \u306e\u753b\u50cf\u306e\u30d4\u30af\u30bb\u30eb\u306f\u900f\u660e\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\uff10\u304b\uff11\uff10\uff10\u304b\u3067\u3059\u3002\u898b\u3048\u308b\u304b\u898b\u3048\u306a\u3044\u304b\u3067\u3059\u3002<\/span><\/p>\r\n\r\n\r\n\r\n

\"image00\"<\/figure>\r\n

\u7d50\u8ad6<\/b>\uff1aPNG-24 \u30d5\u30a1\u30a4\u30eb\u306e\u30d4\u30af\u30bb\u30eb\u306f<\/span>\u90e8\u5206\u7684\u306b<\/span><\/i>\u4e0d\u900f\u660e\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u305d\u306e\u80cc\u5f8c\u306b\u3042\u308b\u8981\u7d20\u306b\u8272\u3092\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u3053\u306e\u5834\u5408\u3082\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306f\u5927\u304d\u304f\u306a\u308b\u3002<\/span><\/p>\r\n

GIF<\/b><\/h2>\r\n

GIF\uff08Graphical Interchange Format\uff09\u306f\u3001\u591a\u304f\u306e\u70b9\u3067 PNG-8 \u306b\u4f3c\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\r\n

GIF \u306f\u3042\u3089\u3086\u308b\u30d6\u30e9\u30a6\u30b6\u3067\u5e83\u304f\u53d7\u3051\u5165\u308c\u3089\u308c\u3066\u3044\u307e\u3059\u3002\uff11\uff19\uff18\uff17\u5e74\u304b\u3089\u5b58\u5728\u3057\u3066\u5b9a\u7740\u3057\u3066\u3044\u307e\u3059\uff08PNG \u306f\u305d\u308c\u3088\u308a\u5c11\u3057\u65b0\u3057\u304f\u3001\uff11\uff19\uff19\uff16\u5e74\u306b\u767b\u5834\u3057\u307e\u3057\u305f\uff09\u3002GIF \u306f\u30ab\u30e9\u30fc\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u3044\u3001\u5727\u7e2e\u52b9\u7387\u306f PNG \u3088\u308a\u5e73\u5747\u3057\u3066\u82e5\u5e72\u52a3\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30d4\u30af\u30bb\u30eb\u3092\u5b8c\u5168\u306b\u900f\u660e\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\r\n

GIF\u306e\u7279\u7b46\u3059\u3079\u304d\u306f\u3001\uff11\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u8907\u6570\u306e\u300c\u753b\u50cf\u300d\u3092\u4fdd\u6301\u3057\u3001\u305d\u308c\u3092\u9023\u7d9a\u3057\u3066\u8868\u793a\u3067\u304d\u308b\u70b9\u3067\u3059\u3002\u3064\u307e\u308a\u3001GIF \u306f\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3 GIF \u30d5\u30a1\u30a4\u30eb\u306f\u3001\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u59cb\u3084\u505c\u6b62\u304c\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u5b9f\u969b\u306b\u306f\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u3067\u306f\u306a\u3044\u3053\u3068\u304b\u3089\u3001\u901a\u5e38\u306f\u30c7\u30b6\u30a4\u30f3\u3088\u308a\u3082\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304c\u3084\u3084\u5927\u304d\u3044\u305f\u3081\u3001\u30c7\u30b6\u30a4\u30ca\u30fc\u306f\u30d5\u30e9\u30c3\u30c8\u30ab\u30e9\u30fc\u753b\u50cf\u306b\u306f GIF \u3088\u308a\u3082 PNG \u3092\u597d\u3080\u3053\u3068\u304c\u591a\u3044\u3088\u3046\u3067\u3059\u3002<\/span><\/p>\r\n

\u7d50\u8ad6<\/b>\uff1a\u30b7\u30f3\u30d7\u30eb\u306a\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001GIF \u304c\u6700\u9069\u3002\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306f\u3001\u5358\u8272\u306e\u30a4\u30e9\u30b9\u30c8\u306a\u3069\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u753b\u50cf\u306b\u306f PNG-8\u306e\u5c11\u3057\u52b9\u7387\u7684\u306a\u5727\u7e2e\u65b9\u5f0f\u3001\u5199\u771f\u306a\u3069\u306e\u8907\u96d1\u306a\u753b\u50cf\u306b\u306f JPEG\u3092\u4f7f\u3046\u306e\u304c\u304a\u3059\u3059\u3081\u3002<\/span><\/p>\r\n

\u5404\u30d0\u30a4\u30c8\u3092\u5727\u7e2e<\/b><\/h2>\r\n

\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u306e\u5727\u7e2e\uff08\u5197\u9577\u306a\u30c7\u30fc\u30bf\u306e\u524a\u9664\u3084\u3001\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3084\u3059\u3044\u3088\u3046\u306b\u753b\u50cf\u3092\u5909\u66f4\u3057\u305f\u308a\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3092\u5c0f\u3055\u304f\u3059\u308b\u3053\u3068\uff09\u306f\u3001Web\u30b5\u30a4\u30c8\u3092\u30b5\u30af\u30c3\u3068\u8aad\u307f\u8fbc\u3080\u306e\u306b\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002\u9ad8\u901f\u306aWeb\u30b5\u30a4\u30c8\u306e\u7d50\u679c\u3001<\/span>\u3088\u308a\u591a\u304f\u306e\u30e6\u30fc\u30b6\u30fc\u3092\u7372\u5f97<\/span>\u3067\u304d\u307e\u3059\u304b\u3089\u306d\u3002<\/span><\/p>\r\n

Photoshop\u3001Sketch\u3001Pixelmator \u306a\u3069\u306e\u307b\u3068\u3093\u3069\u306e\u753b\u50cf\u30a8\u30c7\u30a3\u30bf\u306f\u3001Web\u306b\u9069\u3057\u305f\u5727\u7e2e\u30d5\u30a1\u30a4\u30eb\u3092\u96e3\u306a\u304f\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u307e\u3059\u304c\u3001\u305d\u308c\u304c\u5fc5\u305a\u3057\u3082\u7406\u60f3\u7684\u3068\u3044\u3046\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4ed6\u306e\u30c4\u30fc\u30eb\u3067\u3001\u753b\u50cf\u3092\u3055\u3089\u306b\u5727\u7e2e\u3067\u304d\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/span><\/p>\r\n

\u5727\u7e2e\u30b5\u30fc\u30d3\u30b9<\/b><\/h3>\r\n
    \r\n
  1. <\/b>Compress JPEG<\/b><\/a><\/li>\r\n<\/ol>\r\n

    \u540d\u524d\u306e\u901a\u308a\u3001\u3053\u306e\u7121\u6599\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\u54c1\u8cea\u3092\u72a0\u7272\u306b\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u3042\u3089\u3086\u308b JPG \u30d5\u30a1\u30a4\u30eb\u304b\u3089\u4f59\u5206\u306a\u30d0\u30a4\u30c8\u3092\u53d6\u3063\u3066\u304f\u308c\u307e\u3059\u3002<\/span><\/p>\r\n\r\n\r\n\r\n

    \"image03\"<\/figure>\r\n\r\n\r\n\r\n

    Compress JPG \u306b\u3088\u308a\u3001\u30d5\u30a9\u30c8\u30b7\u30e7\u30c3\u30d7\u3067 \uff17\uff10% \u3067\u4fdd\u5b58\u3055\u308c\u305f\u4e0a\u8a18\u306e\u753b\u50cf\u304c \uff12\uff11\uff17 KB \u304b\u3089 \uff11\uff16\uff10 KB \u306b\u30b9\u30ea\u30e0\u5316\u3055\u308c\u307e\u3057\u305f\u3002\u3061\u306a\u307f\u306b\u54c1\u8cea\u306f\u305d\u306e\u307e\u307e\u3067\u3059\u3002<\/span><\/p>\r\n

      \r\n
    1. <\/b>TinyPNG<\/b><\/a><\/li>\r\n<\/ol>\r\n

      \u3053\u306e\u7121\u6599\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\uff18\u30d3\u30c3\u30c8\u304a\u3088\u3073 \uff12\uff14\u30d3\u30c3\u30c8\u306e PNG \u30d5\u30a1\u30a4\u30eb\u3092\u5727\u7e2e\u3057\u3066\u8aad\u307f\u8fbc\u307f\u6642\u9593\u3092\u77ed\u7e2e\u3057\u307e\u3059\u3002<\/span><\/p>\r\n\r\n\r\n\r\n

      \"image02\"<\/figure>\r\n\r\n\r\n\r\n

      TinyPNG \u306f\u3001\u30ab\u30e9\u30fc \u30c6\u30fc\u30d6\u30eb\u5185\u306e\u307b\u307c\u91cd\u8907\u3057\u305f\u8272\u3092\u524a\u9664\u3059\u308b\u3053\u3068\u3067\u3001\u54c1\u8cea\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u306a\u304f\u3001\u4e0a\u8a18\u306e\u753b\u50cf\u3092\uff11\uff16KB \u304b\u3089\uff11\uff12KB \u306b\u7e2e\u5c0f\u3057\u307e\u3057\u305f\u3002<\/span><\/p>\r\n

      \u30d0\u30a4\u30c8\u6570\u306e\u300c\u591a\u3059\u304e\u308b\u300d\u300c\u5c11\u306a\u3059\u304e\u308b\u300d\u306f\u3069\u306e\u304f\u3089\u3044\uff1f<\/b><\/h2>\r\n

      \u753b\u50cf\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u3067\u304d\u308b\u3060\u3051\u5c11\u306a\u3044\u30d0\u30a4\u30c8\u6570\u3067\u6700\u9ad8\u54c1\u8cea\u306e\u753b\u50cf\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u76ee\u6a19\u3067\u3059\u3002\u305f\u3060\u3001\u30c8\u30ea\u30df\u30f3\u30b0\u306e\u3057\u3059\u304e\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u6642\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\r\n

      JPG \u306e\u5834\u5408<\/b><\/h3>\r\n

      \u691c\u8a3c\u3059\u308b\u305f\u3081\u306b\u3001\u4e0a\u306e\u5199\u771f\u3092JPG\u306e\u5727\u7e2e\u7387\u3092\u6bb5\u968e\u7684\u306b\u5909\u3048\u3066\u4fdd\u5b58\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u7d50\u679c\u306f\u3001\u5727\u7e2e\u7387\uff10\uff05\u306e\uff14\uff15KB\u304b\u3089\uff11\uff10\uff10\uff05\u306e\uff14\uff17\uff19KB\u307e\u3067\u5e45\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u305f\u3060\u3053\u306e\u8a00\u8449\u3068\u306f\u88cf\u8179\u306b\u3001\u6700\u3082\u5727\u7e2e\u7387\u306e\u9ad8\u3044JPG\u304c\u6700\u3082\u9ad8\u54c1\u8cea\uff08\u305d\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304c\u6700\u3082\u5927\u304d\u3044\uff09\u3067\u3042\u308b\u3053\u3068\u3092\u899a\u3048\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\r\n\r\n\r\n\r\n

      \"image07\"<\/figure>\r\n\r\n\r\n\r\n

      \u3053\u306e\u30b0\u30e9\u30d5\u3067\u3001\u9ad8\u5727\u7e2e\u9818\u57df\u3067\u306e\u5287\u7684\u306a\u6e1b\u5c11\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u753b\u8cea\u3092\uff11\uff10\uff10\uff05\u304b\u3089\uff17\uff10\uff05\u306b\u843d\u3068\u3057\u305f\u3060\u3051\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306f\u307b\u307c\u534a\u5206\u306b\u306a\u308a\u307e\u3057\u305f\u304c\u3001\u3088\u308a\u4f4e\u3044\u5727\u7e2e\u7387\u3067\u306f\u3001\u305d\u308c\u307b\u3069\u5927\u304d\u306a\u9055\u3044\u306f\u898b\u3089\u308c\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u30d0\u30a4\u30c8\u6570\u306f\uff10\uff5e\uff12\uff10%\u306b\u4e0b\u304c\u3063\u305f\u3082\u306e\u306e\u3001\u54c1\u8cea\u304c\u6025\u901f\u306b\u843d\u3061\u305f\u305f\u3081\u3001\u7bc0\u7d04\u306b\u898b\u5408\u3046\u307b\u3069\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/span><\/p>\r\n\r\n\r\n\r\n

      \"image05\"<\/figure>\r\n\r\n\r\n\r\n

      \u753b\u50cf\u306f\uff10\uff05\u5727\u7e2e\u3067\uff14\uff15KB\uff08\u5de6\uff09\u3001\uff13\uff10\uff05\u5727\u7e2e\u3067\uff19\uff14KB\uff08\u53f3\uff09\u3067\u3057\u305f\u3002\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306f\u534a\u5206\u306b\u306a\u308a\u307e\u3057\u305f\u304c\u3001\u30a2\u30fc\u30c1\u30d5\u30a1\u30af\u30c8\u3001\u3064\u307e\u308aJPG\u5727\u7e2e\u304c\u52b9\u679c\u3092\u767a\u63ee\u3059\u308b\u30d6\u30ed\u30c3\u30af\u72b6\u306e\u90e8\u5206\u306e\u5897\u52a0\u306f\u3001\u7bc0\u7d04\u306b\u898b\u5408\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/span><\/p>\r\n

      \u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/b>\uff1a\u300cJPG\u30d5\u30a1\u30a4\u30eb\u3092\uff17\uff10% \u3088\u308a\u9ad8\u304f\u3001\u307e\u305f\u306f \uff12\uff10% \u3088\u308a\u4f4e\u304f\u5727\u7e2e\u3057\u306a\u3044\u300d\u3053\u308c\u306f\u53b3\u683c\u306a\u30eb\u30fc\u30eb\u3067\u306f\u306a\u304f\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u3059\u304c\u3001\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\uff12\uff10\uff5e\uff17\uff10\u306e\u7bc4\u56f2\u3067\u5bfe\u5fdc\u3067\u304d\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/span><\/p>\r\n

      PNG \u306e\u5834\u5408<\/b><\/h3>\r\n

      PNG \u30d5\u30a1\u30a4\u30eb\u3092\u898b\u308b\u3068\u3001\u8a71\u306f\u3088\u308a\u8907\u96d1\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u3067\u3082\u540c\u3058\u5b9f\u9a13\u3092\u5b9f\u884c\u3057\u307e\u3057\u305f\u3002<\/span><\/p>\r\n\r\n\r\n\r\n

      \"image08\"<\/figure>\r\n\r\n\r\n\r\n

      \u8272\u304c\u53b3\u5bc6\u306b\u30d5\u30e9\u30c3\u30c8\u3067\u306f\u306a\u3044\u3053\u3068\u306b\u6ce8\u76ee\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u69cb\u56f3\u5168\u4f53\u306b\u7d30\u304b\u3044\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u304b\u304b\u3063\u3066\u3044\u307e\u3059\u306d\u3002\u3053\u308c\u3092\u8003\u616e\u3059\u308b\u306b\u306f\u3001\u5fae\u5999\u306a\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3059\u308b\u30c9\u30c3\u30c8\u306e\u30d1\u30bf\u30fc\u30f3\u3067\u3042\u308b\u300c\u30c7\u30a3\u30b6\u30ea\u30f3\u30b0\u300d\u304c\u5fc5\u8981\u3067\u3059\u3002<\/span><\/p>\r\n\r\n\r\n\r\n

      \"image06\"<\/figure>\r\n\r\n\r\n\r\n

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      \"image09\"<\/figure>\r\n\r\n\r\n\r\n

      \u4e00\u822c\u7684\u306b\u3001\u8272\u6570\u3068\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306b\u306f\u95a2\u4fc2\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u308c\u307b\u3069\u591a\u304f\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d5\u30a9\u30c8\u30b7\u30e7\u30c3\u30d7\u3060\u3068\u3001\u9650\u3089\u308c\u305f\u30ab\u30e9\u30fc\u30c6\u30fc\u30d6\u30eb\u3067\u6700\u9069\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u898b\u3064\u3051\u308b\u306e\u304c\u5927\u5909\u3067\u3057\u305f\u3002\u5b9f\u969b\u3001\uff14\uff10\u8272\u306f\uff12\uff15\u8272\u3068\u307b\u307c\u540c\u3058\u30d0\u30a4\u30c8\u6570\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306f\u540c\u3058\u3067\u3059\u304c\u3001\u54c1\u8cea\u306f\u306f\u308b\u304b\u306b\u3088\u304b\u3063\u305f\u3067\u3059\u3002<\/span><\/p>\r\n

      \u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/b>\uff1a\u300cPNG \u304b\u3089\u30d0\u30a4\u30c8\u3092\u3059\u3079\u3066\u7d5e\u308a\u51fa\u3059\u969b\u306b\u6700\u826f\u306e\u7d50\u679c\u3092\u5f97\u308b\u306b\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30ab\u30e9\u30fc\u30c6\u30fc\u30d6\u30eb\u3092\u8a66\u3057\u3066\u307f\u308b\u306e\u304c\u6700\u5584\u3067\u3042\u308b\u3002\u300d\u3002\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u9069\u5207\u306a\u91cf\u306f\u753b\u50cf\u3054\u3068\u306b\u7570\u306a\u308b\u4e3b\u89b3\u7684\u306a\u554f\u984c\u3067\u3042\u308a\u3001\u3044\u3064 \u300c\u9069\u5207\u300d\u306b\u898b\u3048\u308b\u304b\u306f\u3042\u306a\u305f\u6b21\u7b2c\u3067\u3059\u3002<\/span><\/p>\r\n

      SVG<\/b><\/h2>\r\n

      SVG\uff08<\/span>Scalable Vector Graphics<\/span><\/a>\uff09\u306f\u3001\u30d4\u30af\u30bb\u30eb\u306e\u4ee3\u308f\u308a\u306b\u7dda\uff08\u30e9\u30b9\u30bf\u30fc\u753b\u50cf\u306e\u4ee3\u308f\u308a\u306b\u30d9\u30af\u30bf\u30fc\uff09\u3092\u4f7f\u3063\u3066\u7dda\u753b\u3092\u8868\u793a\u3057\u307e\u3059\u3002SVG \u306f\u5b9f\u969b\u306b\u306f XML \u306e\u4e00\u7a2e\u3067\u3001Inkscape \u3084 Adob\u200b\u200be Illustrator \u306a\u3069\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u7c21\u5358\u306b\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\r\n

      SVG \u30d5\u30a1\u30a4\u30eb\u306f\u3001\u30c7\u30a3\u30b6\u30ea\u30f3\u30b0\u306a\u3057\u3067\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u751f\u6210\u3067\u304d\u3001\u53e4\u3044\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u304b\u3089\u30ef\u30a4\u30c9\u30b9\u30af\u30ea\u30fc\u30f3TV\u307e\u3067\u3001\u3042\u3089\u3086\u308b\u30b5\u30a4\u30ba\u306e\u30b3\u30f3\u30c6\u30ca\u306b\u5408\u308f\u305b\u3066\u62e1\u5927\u7e2e\u5c0f\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001SVG \u30d5\u30a1\u30a4\u30eb\u306f\u3001\u30d9\u30af\u30bf\u30fc\u3068\u3057\u3066\u30d6\u30e9\u30a6\u30b6\u304c\u305d\u306e\u5834\u3067\u70b9\u3068\u70b9\u3092\u7d50\u3076\u305f\u3081\u3001\u89e3\u50cf\u5ea6\u304c\u843d\u3061\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u3057\u3066 JavaScript \u3067\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3055\u305b\u308b\u3053\u3068\u3082\u3067\u304d\u3001 HTML \u6587\u66f8\u306b\u305d\u306e\u307e\u307e\u57cb\u3081\u8fbc\u3080\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\r\n\r\n\r\n\r\n

      \"image10\"<\/figure>\r\n\r\n\r\n\r\n

      \u4e0a: \u30d9\u30af\u30bf\u30fc \u30a2\u30fc\u30c8 (\u5de6) \u306f\u9069\u5207\u306b\u62e1\u5927\u3055\u308c\u307e\u3059\u3002\u4e00\u65b9\u3001\u30e9\u30b9\u30bf\u30fc\u30a2\u30fc\u30c8 (\u53f3) \u306f\u30d6\u30ed\u30c3\u30af\u72b6\u3067\u30d4\u30af\u30bb\u30eb\u5316\u3055\u308c\u3066\u898b\u3048\u307e\u3059\u3002<\/span><\/i><\/p>\r\n

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      \u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/b>\uff1a\u300c\u30b7\u30e3\u30fc\u30d7\u306a\u7dda\u3068\u7de9\u3084\u304b\u306a\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u5099\u3048\u305f<\/span>\u30d5\u30e9\u30c3\u30c8 2.0 \u306e\u5916\u89b3<\/span><\/a>\u3092\u6c42\u3081\u3066\u304a\u308a\u3001\u6700\u65b0\u306e\u30d6\u30e9\u30a6\u30b6\uff08<\/span>IE8\u306f\u6b8b\u5ff5\u306a\u304c\u3089\u5bfe\u8c61\u5916<\/span><\/a>\uff09\u3092\u5bfe\u8c61\u3068\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001SVG \u3092\u4f7f\u3046\u300d\u306e\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/span><\/p>\r\n

      \u30b3\u30fc\u30c9\u306b\u95a2\u3059\u308b\u8003\u616e\u4e8b\u9805<\/b><\/h2>\r\n

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      \u5fc5\u9808\u306e CSS\u306e\u30d7\u30ed\u30d1\u30c6\u30a3<\/b><\/h3>\r\n

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      img { max-width: 100%; }<\/span><\/p>\r\n\r\n\r\n\r\n

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      \u5c06\u6765\u306e HTML\u753b\u50cf\u8981\u7d20<\/b><\/h3>\r\n

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      \u4f8b\u3048\u3070\uff1a<\/span><\/p>\r\n\r\n\r\n\r\n

      <picture alt=”Descriptive text fallback”><\/span><\/p>\r\n\r\n\r\n\r\n

      \u00a0<img src=”sample-default.png”><\/span><\/p>\r\n\r\n\r\n\r\n

      \u00a0<source srcset=”sample-large.png” media=”(min-width: 640px)”><\/span><\/p>\r\n\r\n\r\n\r\n

      \u00a0<source srcset=”sample-small.png” media=”(max-width: 639px)”><\/span><\/p>\r\n\r\n\r\n\r\n

      <\/picture><\/span><\/p>\r\n\r\n\r\n\r\n

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