{"id":127911,"date":"2024-03-25T04:25:57","date_gmt":"2024-03-24T19:25:57","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/"},"modified":"2024-04-05T14:52:33","modified_gmt":"2024-04-05T05:52:33","slug":"html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/","title":{"rendered":"HTML\u306eDOCTYPE\u306e\u5f79\u5272"},"content":{"rendered":"

DOCTYPE\uff08Document Type Declaration\uff09\u306f\u3001HTML\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u7a2e\u985e\u3092\u5ba3\u8a00\u3059\u308b\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u8a00\u8a9e\u3067\u3042\u308a\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u3069\u306eHTML\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u89e3\u6790\u3059\u308b\u304b\u3092\u4f1d\u3048\u307e\u3059\u3002DOCTYPE\u306fHTML\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u5148\u982d\u306b\u3042\u308a\u3001HTML\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u7a2e\u985e\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n

DOCTYPE\u306e\u5f79\u5272\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n

    \n
  1. HTML \u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u6307\u5b9a\uff1a\u5404 HTML \u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u7570\u306a\u308b\u69cb\u6587\u898f\u5247\u3068\u30bf\u30b0\u5b9a\u7fa9\u3092\u6301\u3063\u3066\u304a\u308a\u3001\u6b63\u3057\u3044 DOCTYPE \u306e\u6307\u5b9a\u306f\u30d6\u30e9\u30a6\u30b6\u30fc\u306b\u3088\u308b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u6b63\u3057\u3044\u89e3\u91c8\u3068\u8868\u793a\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002<\/li>\n
  2. DOCTYPE\u306f\u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30e2\u30fc\u30c9\u3092\u5236\u5fa1\u3057\u3001\u30d6\u30e9\u30a6\u30b6\u30fc\u304c\u30da\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u65b9\u6cd5\u3092\u6c7a\u5b9a\u3067\u304d\u307e\u3059\u3002\u6a19\u6e96\u30e2\u30fc\u30c9\u3067\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u30fc\u306f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u6a19\u6e96\u306b\u5f93\u3063\u3066\u89e3\u6790\u3057\u3066\u8868\u793a\u3057\u307e\u3059\u3002\u4e00\u65b9\u3001\u4e92\u63db\u30e2\u30fc\u30c9\u3067\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u30fc\u306f\u53e4\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u52d5\u4f5c\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3057\u3066\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u89e3\u6790\u3057\u3001\u4e0b\u4f4d\u4e92\u63db\u6027\u3092\u4fdd\u3061\u307e\u3059\u3002<\/li>\n
  3. DOCTYPE \u306f HTML \u6587\u66f8\u306e\u69cb\u9020\u3092\u5b9a\u7fa9\u3059\u308b DTD (Document Type Definition) \u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u6587\u66f8\u306e\u59a5\u5f53\u6027\u691c\u8a3c\u306b\u3082\u5f79\u7acb\u3061\u307e\u3059\u3002\u6587\u66f8\u304c DTD \u3068\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u30a8\u30e9\u30fc\u3092\u51fa\u3057\u305f\u308a\u3001\u975e\u4e92\u63db\u30e2\u30fc\u30c9\u3067\u6587\u66f8\u3092\u89e3\u6790\u3057\u305f\u308a\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u3064\u307e\u308a\u3001HTML\u6587\u66f8\u5185\u306eDOCTYPE\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u6587\u66f8\u3092\u6b63\u3057\u304f\u89e3\u6790\u3057\u3066\u8868\u793a\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30e2\u30fc\u30c9\u3092\u5236\u5fa1\u3057\u3001\u6587\u66f8\u306e\u59a5\u5f53\u6027\u3092\u691c\u8a3c\u3059\u308b\u5f79\u76ee\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    DOCTYPE\uff08Document Type Declaration\uff09\u306f\u3001HTML\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u7a2e\u985e\u3092\u5ba3\u8a00\u3059\u308b\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u8a00\u8a9e\u3067\u3042\u308a\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u3069\u306eHTML\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u89e3\u6790\u3059\u308b\u304b\u3092\u4f1d\u3048\u307e […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-127911","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nHTML\u306eDOCTYPE\u306e\u5f79\u5272 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/html\u306edoctype\u306e\u5f79\u5272\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HTML\u306eDOCTYPE\u306e\u5f79\u5272\" \/>\n<meta property=\"og:description\" content=\"DOCTYPE\uff08Document Type Declaration\uff09\u306f\u3001HTML\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u7a2e\u985e\u3092\u5ba3\u8a00\u3059\u308b\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u8a00\u8a9e\u3067\u3042\u308a\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u3069\u306eHTML\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u89e3\u6790\u3059\u308b\u304b\u3092\u4f1d\u3048\u307e […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/html\u306edoctype\u306e\u5f79\u5272\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-24T19:25:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-05T05:52:33+00:00\" \/>\n<meta name=\"author\" content=\"\u5149, \u660e\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u5149, \u660e\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/\",\"url\":\"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/\",\"name\":\"HTML\u306eDOCTYPE\u306e\u5f79\u5272 - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#website\"},\"datePublished\":\"2024-03-24T19:25:57+00:00\",\"dateModified\":\"2024-04-05T05:52:33+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/9ee62cea876d247deba14a0ac7ba5b55\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/ja\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"HTML\u306eDOCTYPE\u306e\u5f79\u5272\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/ja\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"ja\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/9ee62cea876d247deba14a0ac7ba5b55\",\"name\":\"\u5149, \u660e\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/3dffb6c754b95e3fbdcd8973f4375ff9dd10d41e4f6632ad08d4d59ccc35af8d?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/3dffb6c754b95e3fbdcd8973f4375ff9dd10d41e4f6632ad08d4d59ccc35af8d?s=96&d=mm&r=g\",\"caption\":\"\u5149, \u660e\"},\"url\":\"https:\/\/www.silicloud.com\/ja\/blog\/author\/hikariakira\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"HTML\u306eDOCTYPE\u306e\u5f79\u5272 - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/ja\/blog\/html\u306edoctype\u306e\u5f79\u5272\/","og_locale":"ja_JP","og_type":"article","og_title":"HTML\u306eDOCTYPE\u306e\u5f79\u5272","og_description":"DOCTYPE\uff08Document Type Declaration\uff09\u306f\u3001HTML\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u7a2e\u985e\u3092\u5ba3\u8a00\u3059\u308b\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u8a00\u8a9e\u3067\u3042\u308a\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u3069\u306eHTML\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u89e3\u6790\u3059\u308b\u304b\u3092\u4f1d\u3048\u307e […]","og_url":"https:\/\/www.silicloud.com\/ja\/blog\/html\u306edoctype\u306e\u5f79\u5272\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2024-03-24T19:25:57+00:00","article_modified_time":"2024-04-05T05:52:33+00:00","author":"\u5149, \u660e","twitter_card":"summary_large_image","twitter_misc":{"\u57f7\u7b46\u8005":"\u5149, \u660e"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/","url":"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/","name":"HTML\u306eDOCTYPE\u306e\u5f79\u5272 - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/ja\/blog\/#website"},"datePublished":"2024-03-24T19:25:57+00:00","dateModified":"2024-04-05T05:52:33+00:00","author":{"@id":"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/9ee62cea876d247deba14a0ac7ba5b55"},"breadcrumb":{"@id":"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/ja\/blog\/"},{"@type":"ListItem","position":2,"name":"HTML\u306eDOCTYPE\u306e\u5f79\u5272"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/ja\/blog\/#website","url":"https:\/\/www.silicloud.com\/ja\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"ja"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/9ee62cea876d247deba14a0ac7ba5b55","name":"\u5149, \u660e","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/3dffb6c754b95e3fbdcd8973f4375ff9dd10d41e4f6632ad08d4d59ccc35af8d?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/3dffb6c754b95e3fbdcd8973f4375ff9dd10d41e4f6632ad08d4d59ccc35af8d?s=96&d=mm&r=g","caption":"\u5149, \u660e"},"url":"https:\/\/www.silicloud.com\/ja\/blog\/author\/hikariakira\/"},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.silicloud.com\/ja\/blog\/html%e3%81%aedoctype%e3%81%ae%e5%bd%b9%e5%89%b2\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/posts\/127911","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/comments?post=127911"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/posts\/127911\/revisions"}],"predecessor-version":[{"id":321455,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/posts\/127911\/revisions\/321455"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/media?parent=127911"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/categories?post=127911"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/ja\/blog\/wp-json\/wp\/v2\/tags?post=127911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}