{"id":21374,"date":"2026-03-19T10:01:41","date_gmt":"2026-03-19T01:01:41","guid":{"rendered":"https:\/\/www.synergy-marketing.co.jp\/blog\/?p=21374"},"modified":"2026-03-19T10:01:41","modified_gmt":"2026-03-19T01:01:41","slug":"html-email_image_size","status":"publish","type":"post","link":"https:\/\/www.synergy-marketing.co.jp\/blog\/html-email_image_size","title":{"rendered":"\u30e1\u30eb\u30de\u30ac\u306e\u6700\u9069\u306a\u753b\u50cf\u30b5\u30a4\u30ba\u3068\u306f\uff1f\u30b9\u30de\u30db\u6642\u4ee3\u306eHTML\u30e1\u30fc\u30eb\u4f5c\u6210\u8853"},"content":{"rendered":"<div class=\"post-content\">\n<div class=\"box box-gray\">\n<p><strong>&lt;\u3053\u306e\u8a18\u4e8b\u3067\u308f\u304b\u308b\u3053\u3068&gt;<\/strong><\/p>\n<ul>\n<li>HTML\u30e1\u30fc\u30eb\u306e\u6a2a\u5e45\u306f\u3001\u591a\u304f\u306e\u95b2\u89a7\u74b0\u5883\u3067\u8868\u793a\u5d29\u308c\u3092\u9632\u3050\u305f\u3081\u300c600px\u524d\u5f8c\u300d\u3092\u57fa\u6e96\u306b\u8a2d\u8a08\u3059\u308b\u306e\u304c\u6700\u3082\u4e00\u822c\u7684\u3067\u3042\u308b\u3002<\/li>\n<li>\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u5411\u3051\u306b\u306f\u3001CSS\u3067\u300cwidth:100%\u300d\u3084\u300cmax-width:100%\u300d\u3092\u6307\u5b9a\u3057\u3066\u753b\u9762\u5e45\u306b\u5408\u308f\u305b\u3001\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u4f4e\u4e0b\u3092\u9632\u3050\u305f\u3081\u753b\u50cf\u5bb9\u91cf\u306f1\u679a100KB\u4ee5\u4e0b\uff08\u5408\u8a08500KB\u76ee\u5b89\uff09\u306b\u6291\u3048\u308b\u3002<\/li>\n<li>\u30b9\u30de\u30db\u3067\u306e\u9ad8\u3044\u8996\u8a8d\u6027\u3092\u78ba\u4fdd\u3059\u308b\u306b\u306f\u3001\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\uff08@media\u30af\u30a8\u30ea\uff09\u3084\u30ea\u30ad\u30c3\u30c9\u30ec\u30a4\u30a2\u30a6\u30c8\uff08%\u6307\u5b9a\uff09\u3092\u7528\u3044\u3066\u3001\u30c7\u30d0\u30a4\u30b9\u306b\u5fdc\u3058\u3066\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002<\/li>\n<li>\u30af\u30ea\u30c3\u30af\u7387\u306b\u76f4\u7d50\u3059\u308bCTA\u30dc\u30bf\u30f3\u306f\u3001\u30bf\u30c3\u30d7\u3057\u3084\u3059\u3044\u3088\u3046\u6700\u4f4e\u3067\u3082\u9ad8\u305544px\u4ee5\u4e0a\u3092\u78ba\u4fdd\u3057\u3001\u6a2a\u5e45\u306f300\u301c500px\u7a0b\u5ea6\u3067\u76ee\u7acb\u305f\u305b\u308b\u3002<\/li>\n<li>HTML\u975e\u5bfe\u5fdc\u74b0\u5883\u306e\u305f\u3081\u306b\u30c6\u30ad\u30b9\u30c8\u7248\u3082\u540c\u68b1\u3059\u308b\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u914d\u4fe1\u304c\u63a8\u5968\u3055\u308c\u3001\u52b9\u7387\u7684\u306a\u4f5c\u6210\u30fb\u5206\u6790\u30fb\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u306b\u306f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u6d3b\u7528\u304c\u6709\u52b9\u3067\u3042\u308b\u3002<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/674_mainvisual.png\" alt=\"\u30e1\u30eb\u30de\u30ac\u306e\u6700\u9069\u306a\u753b\u50cf\u30b5\u30a4\u30ba\u3068\u306f\uff1f\u30b9\u30de\u30db\u6642\u4ee3\u306eHTML\u30e1\u30fc\u30eb\u4f5c\u6210\u8853\" width=\"750\" height=\"456\" \/><\/p>\n<p>\u6210\u679c\u306e\u51fa\u308b<a href=\"https:\/\/www.synergy-marketing.co.jp\/glossary\/html-mail\/\" target=\"_blank\" rel=\"noopener\">HTML\u30e1\u30fc\u30eb<\/a>\u306b\u306f\u3001\u6700\u9069\u306a\u300c\u30b5\u30a4\u30ba\u300d\u306e\u57fa\u6e96\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u3082\u91cd\u8981\u306a\u306e\u306f\u3001\u591a\u304f\u306e\u74b0\u5883\u3067\u5d29\u308c\u306a\u3044\u30e1\u30fc\u30eb\u5168\u4f53\u306e\u6a2a\u5e45\uff08\u7d04600px\uff09\u3092\u57fa\u6e96\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u57fa\u672c\u30eb\u30fc\u30eb\u306b\u52a0\u3048\u3001\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u306e\u753b\u50cf\u8a2d\u5b9a\u3001\u30af\u30ea\u30c3\u30af\u7387\u3092\u5de6\u53f3\u3059\u308bCTA\u30dc\u30bf\u30f3\u306e\u9069\u5207\u306a\u30b5\u30a4\u30ba\u3001\u305d\u3057\u3066\u30c7\u30b6\u30a4\u30f3\u3092\u52b9\u7387\u5316\u3059\u308b\u65b9\u6cd5\u307e\u3067\u3001\u5177\u4f53\u7684\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u5fb9\u5e95\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<div class=\"inner-cta\">\n<div class=\"inner-cta-content\">\n<div class=\"inner-cta-content-img\">\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.synergy-marketing.co.jp\/wp\/wp-content\/uploads\/thumb_email_tips.png\" alt=\"\u8aad\u3093\u3067\u3082\u3089\u3048\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u7d39\u4ecb\uff01\" width=\"200\" height=\"150\" \/><\/p>\n<\/div>\n<div class=\"inner-cta-content-text\">\n<h4>\u8aad\u3093\u3067\u3082\u3089\u3048\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u7d39\u4ecb\uff01<\/h4>\n<p>\u30bb\u30b0\u30e1\u30f3\u30c8\u914d\u4fe1\u3068\u4e00\u7dd2\u306b\u78ba\u8a8d\u3057\u3066\u307b\u3057\u3044\u3001\u8aad\u3093\u3067\u3082\u3089\u3044\u3084\u3059\u3044\u30e1\u30fc\u30eb\u4f5c\u6210\u306eTips\u96c6\u3002<\/p>\n<p class=\"inner-cta-content-btn\"><a id=\"ct-blog-innnercta-01\" class=\"btn btn-red btn-block\" href=\"https:\/\/form.synergy-marketing.co.jp\/webapp\/form\/18784_mubb_10\/index.do?code=email_tips\" target=\"_blank\" rel=\"noopener\">\u8cc7\u6599\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2>HTML\u30e1\u30fc\u30eb\u306e\u6700\u9069\u306a\u753b\u50cf\u30b5\u30a4\u30ba<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-21376\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/674_image01.png\" alt=\"HTML\u30e1\u30fc\u30eb\u306e\u6700\u9069\u306a\u753b\u50cf\u30b5\u30a4\u30ba\" width=\"750\" height=\"456\" srcset=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/674_image01.png 750w, https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/674_image01-230x140.png 230w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>HTML\u30e1\u30fc\u30eb\u306f\u3001\u30c6\u30ad\u30b9\u30c8\u3068\u753b\u50cf\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u60c5\u5831\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u4f1d\u3048\u3089\u308c\u308b\u4e00\u65b9\u3001\u8868\u793a\u74b0\u5883\u306b\u3088\u3063\u3066\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u5d29\u308c\u3084\u3059\u3044\u3068\u3044\u3046\u8ab2\u984c\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001HTML\u30e1\u30fc\u30eb\u306b\u304a\u3051\u308b\u6700\u9069\u306a\u753b\u50cf\u30b5\u30a4\u30ba\u306e\u8003\u3048\u65b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>\u6a2a\u5e45\u30b5\u30a4\u30ba\u306e\u57fa\u672c\uff08\u63a8\u5968600px\u524d\u5f8c\uff09<\/h3>\n<p>HTML\u30e1\u30fc\u30eb\u306e\u6a2a\u5e45\u8a2d\u8a08\u306b\u304a\u3044\u3066\u6700\u3082\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u57fa\u6e96\u304c\u300c600px\u524d\u5f8c\u300d\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u591a\u304f\u306e\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3084\u30c7\u30d0\u30a4\u30b9\u3067\u7121\u7406\u306a\u304f\u8868\u793a\u3067\u304d\u308b\u30b5\u30a4\u30ba\u3067\u3042\u308a\u3001PC\u3067\u306f\u5341\u5206\u306a\u8996\u899a\u7684\u52b9\u679c\u3092\u4fdd\u3061\u3064\u3064\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3067\u3082\u6a2a\u30b9\u30af\u30ed\u30fc\u30eb\u3092\u907f\u3051\u3089\u308c\u308b\u70b9\u3067\u512a\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4eee\u306b\u6a2a\u5e45\u3092700px\u4ee5\u4e0a\u306b\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u4e00\u90e8\u306e\u74b0\u5883\u3067\u306f\u5de6\u53f3\u304c\u5207\u308c\u3066\u3057\u307e\u3046\u6050\u308c\u304c\u3042\u308a\u3001\u8aad\u8005\u306b\u30b9\u30c8\u30ec\u30b9\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002PC\u306e\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\uff08\u7279\u306bOutlook\uff09\u3067\u306f\u3001\u30d7\u30ec\u30d3\u30e5\u30fc\u753b\u9762\u306e\u6a2a\u5e45\u304c\u72ed\u3044\u30b1\u30fc\u30b9\u304c\u591a\u304f\u3001600px\u3092\u8d85\u3048\u308b\u3068\u6a2a\u30b9\u30af\u30ed\u30fc\u30eb\u304c\u767a\u751f\u3057\u3066\u8aad\u307f\u3065\u3089\u304f\u306a\u308b\u305f\u3081\u3067\u3059\u3002\u9006\u306b400px\u4ee5\u4e0b\u306b\u7e2e\u5c0f\u3059\u308b\u3068\u3001\u6587\u5b57\u3084\u30dc\u30bf\u30f3\u304c\u5c0f\u3055\u304f\u306a\u308a\u3059\u304e\u3066\u30af\u30ea\u30c3\u30af\u3057\u3065\u3089\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001600px\u3092\u57fa\u6e96\u306b\u3001\u30c7\u30b6\u30a4\u30f3\u3084\u5185\u5bb9\u306b\u5fdc\u3058\u3066\u00b150px\u7a0b\u5ea6\u306e\u8abf\u6574\u3092\u884c\u3046\u306e\u304c\u73fe\u5b9f\u7684\u3067\u3059\u3002\u672c\u6587\u5185\u306e\u753b\u50cf\u3084\u30d0\u30ca\u30fc\u3082\u3053\u306e\u57fa\u6e96\u5e45\u3092\u5b88\u308b\u3053\u3068\u3067\u7d71\u4e00\u611f\u304c\u51fa\u3066\u3001\u5168\u4f53\u306e\u30c7\u30b6\u30a4\u30f3\u304c\u5b89\u5b9a\u3057\u307e\u3059\u3002\u30e1\u30fc\u30eb\u306e\u6a2a\u5e45\u3092600px\u524d\u5f8c\u306b\u8a2d\u8a08\u3059\u308b\u3053\u3068\u306f\u3001\u8996\u8a8d\u6027\u3068\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u306e\u4e21\u7acb\u306b\u76f4\u7d50\u3059\u308b\u57fa\u672c\u7684\u306a\u30eb\u30fc\u30eb\u3068\u3044\u3048\u307e\u3059\u3002<\/p>\n<div class=\"box\">\n<div class=\"row\">\n<div class=\"col-md-3 col-sm-4 col-xs-6\"><a href=\"https:\/\/www.synergy-marketing.co.jp\/blog\/what_is_html_mail\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/411_mainvisual.png\" alt=\"HTML\u30e1\u30fc\u30eb\u3068\u306f\uff1f\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u3068\u4f5c\u308a\u65b9\u3092\u89e3\u8aac\" \/><\/a><\/div>\n<div class=\"col-md-9 col-sm-8 col-xs-6\"><a href=\"https:\/\/www.synergy-marketing.co.jp\/blog\/what_is_html_mail\" target=\"_blank\" rel=\"noopener\"><strong>HTML\u30e1\u30fc\u30eb\u3068\u306f\uff1f\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u3068\u4f5c\u308a\u65b9\u3092\u89e3\u8aac<\/strong><\/a><\/div>\n<\/div>\n<\/div>\n<h3>\u30b9\u30de\u30db\u306b\u6700\u9069\u5316\u3055\u308c\u305f\u753b\u50cf\u30b5\u30a4\u30ba<\/h3>\n<p>\u30b9\u30de\u30db\u30e6\u30fc\u30b6\u30fc\u3092\u610f\u8b58\u3057\u305fHTML\u30e1\u30fc\u30eb\u3067\u306f\u3001\u753b\u50cf\u3092\u753b\u9762\u5e45\u306b\u30d5\u30a3\u30c3\u30c8\u3055\u305b\u308b\u3053\u3068\u304c\u6700\u3082\u91cd\u8981\u3067\u3059\u3002\u591a\u304f\u306e\u30b9\u30de\u30db\u306e\u8868\u793a\u5e45\u306f360\u301c414px\u7a0b\u5ea6\u3067\u3042\u308b\u305f\u3081\u3001CSS\u3067\u300cwidth:100%\u300d\u3084\u300cmax-width:100%\u300d\u3092\u6307\u5b9a\u3057\u3066\u3001\u753b\u9762\u30b5\u30a4\u30ba\u306b\u5408\u308f\u305b\u3066\u81ea\u52d5\u7684\u306b\u7e2e\u5c0f\u30fb\u62e1\u5927\u3055\u308c\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3057\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u30b9\u30de\u30db\u74b0\u5883\u3067\u306f\u901a\u4fe1\u901f\u5ea6\u306e\u5236\u7d04\u3082\u3042\u308b\u305f\u3081\u3001\u753b\u50cf\u5bb9\u91cf\u3092\u6291\u3048\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u63a8\u5968\u3055\u308c\u308b\u306e\u306f1\u679a\u3042\u305f\u308a100KB\u4ee5\u4e0b\u3067\u3001\u8907\u6570\u753b\u50cf\u3092\u4f7f\u3046\u5834\u5408\u306f\u5408\u8a08\u3067500KB\u301c1MB\u7a0b\u5ea6\u3092\u76ee\u5b89\u306b\u3057\u307e\u3059\u3002\uff08\u203b\u53d7\u4fe1\u74b0\u5883\u306b\u3088\u308b\uff09\u5bb9\u91cf\u304c\u5927\u304d\u3059\u304e\u308b\u3068\u8aad\u307f\u8fbc\u307f\u306b\u6642\u9593\u304c\u304b\u304b\u308a\u3001\u9014\u4e2d\u3067\u8868\u793a\u304c\u9014\u5207\u308c\u308b\u30ea\u30b9\u30af\u3082\u751f\u3058\u307e\u3059\u3002<\/p>\n<p>\u52a0\u3048\u3066\u3001\u89e3\u50cf\u5ea6\u306f2\u500d\u7a0b\u5ea6\u306e\u9ad8\u89e3\u50cf\u5ea6\u3092\u7528\u610f\u3059\u308b\u3068Retina\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3067\u3082\u9bae\u660e\u306b\u8868\u793a\u3067\u304d\u3001\u4fe1\u983c\u611f\u3092\u640d\u306a\u308f\u305a\u306b\u6e08\u307f\u307e\u3059\u3002<\/p>\n<h3>CTA\u30dc\u30bf\u30f3\u306e\u9069\u5207\u306a\u6a2a\u5e45\u30fb\u9ad8\u3055<\/h3>\n<p><a href=\"https:\/\/www.synergy-marketing.co.jp\/glossary\/cta\/\" target=\"_blank\" rel=\"noopener\">CTA\uff08Call To Action\uff09<\/a>\u30dc\u30bf\u30f3\u306f\u3001HTML\u30e1\u30fc\u30eb\u306b\u304a\u3044\u3066\u6700\u3082\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u8981\u7d20\u306e1\u3064\u3067\u3042\u308a\u3001\u9069\u5207\u306a\u30b5\u30a4\u30ba\u8a2d\u5b9a\u304c\u6210\u679c\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002\u6a2a\u5e45\u306f\u30e1\u30fc\u30eb\u672c\u6587\u5168\u4f53\u5e45\u306b\u5bfe\u3057\u3066\u304a\u304a\u3080\u306d50\u301c80%\u7a0b\u5ea6\u3001\u5177\u4f53\u7684\u306b\u306f300\u301c500px\u7a0b\u5ea6\u3092\u76ee\u5b89\u306b\u8a2d\u8a08\u3059\u308b\u306e\u304c\u52b9\u679c\u7684\u3067\u3059\u3002PC\u3067\u3082\u30b9\u30de\u30db\u3067\u3082\u8996\u8a8d\u6027\u304c\u9ad8\u307e\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u81ea\u7136\u306b\u6ce8\u76ee\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u9ad8\u3055\u306b\u3064\u3044\u3066\u306f\u3001\u30bf\u30c3\u30d7\u9818\u57df\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u6700\u4f4e\u3067\u308244px\u4ee5\u4e0a\u3092\u57fa\u6e96\u3068\u3057\u3001\u4f59\u767d\u3092\u542b\u3081\u3066\u6307\u3067\u62bc\u3057\u3084\u3059\u3044\u5927\u304d\u3055\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u307e\u305f\u3001\u753b\u50cf\u3067\u4f5c\u308b\u30dc\u30bf\u30f3\u306f\u975e\u8868\u793a\u6642\u306b\u6d88\u3048\u3066\u3057\u307e\u3046\u305f\u3081\u3001HTML\u3068CSS\u3067\u63cf\u753b\u3059\u308b\u300cCSS\u30dc\u30bf\u30f3\u300d\u3092\u63a1\u7528\u3059\u308b\u3068\u3001\u753b\u50cf\u30aa\u30d5\u306e\u72b6\u614b\u3067\u3082\u30af\u30ea\u30c3\u30af\u3092\u4fc3\u305b\u307e\u3059\u3002<\/p>\n<p>\u30b9\u30de\u30db\u306e\u5229\u7528\u8005\u304c\u591a\u3044\u73fe\u4ee3\u306b\u304a\u3044\u3066\u306f\u3001\u30dc\u30bf\u30f3\u3092\u5927\u304d\u3081\u306b\u4f5c\u308a\u3001\u753b\u9762\u5e45\u306b\u5408\u308f\u305b\u3066\u81ea\u52d5\u8abf\u6574\u3055\u308c\u308b\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u3092\u7d44\u307f\u8fbc\u3080\u3053\u3068\u304c\u5fc5\u9808\u3067\u3059\u3002<\/p>\n<h2>\u30b9\u30de\u30db\u3067\u898b\u3084\u3059\u3044HTML\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3059\u308b\u30dd\u30a4\u30f3\u30c8<\/h2>\n<p>HTML\u30e1\u30fc\u30eb\u306f\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u3084\u30c6\u30ad\u30b9\u30c8\u30fb\u753b\u50cf\u306e\u914d\u7f6e\u306a\u3069\u3001\u3044\u304f\u3064\u304b\u306e\u5de5\u592b\u304c\u6b20\u304b\u305b\u307e\u305b\u3093\u3002\u3053\u3053\u3067\u306f\u3001\u30b9\u30de\u30db\u3067\u898b\u3084\u3059\u3044HTML\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306e\u4e3b\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u5bfe\u5fdc<\/h3>\n<p>\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u3068\u306f\u3001\u753b\u9762\u5e45\u306b\u5fdc\u3058\u3066CSS\u3092\u5207\u308a\u66ff\u3048\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u6700\u9069\u5316\u3059\u308b\u6280\u8853\u3092HTML\u30e1\u30fc\u30eb\u306b\u5fdc\u7528\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u30e1\u30fc\u30eb\u304c\u958b\u304b\u308c\u308b\u7aef\u672b\u3092\u5224\u5225\u3057\u3001\u30b9\u30de\u30db\u8868\u793a\u7528\u3068PC\u8868\u793a\u7528\u306e\u30b9\u30bf\u30a4\u30eb\u3092\u5207\u308a\u66ff\u3048\u3089\u308c\u308b\u305f\u3081\u3001\u305d\u308c\u305e\u308c\u3067\u898b\u3084\u3059\u3044\u69cb\u6210\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001@media\u30af\u30a8\u30ea\u3092\u7528\u3044\u3066\u300c\u753b\u9762\u5e45\u304c\u25cb\u25cb\u4ee5\u4e0b\u306a\u3089\u6587\u5b57\u30b5\u30a4\u30ba\u3092\u5927\u304d\u304f\u3059\u308b\u300d\u300c\u753b\u50cf\u30921\u30ab\u30e9\u30e0\u8868\u793a\u306b\u5207\u308a\u66ff\u3048\u308b\u300d\u306a\u3069\u306e\u8a2d\u5b9a\u3092\u884c\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304cmediaquery\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3001\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u74b0\u5883\u3067\u306f\u5d29\u308c\u3084\u3059\u304f\u306a\u308b\u30ea\u30b9\u30af\u3082\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u30c7\u30b6\u30a4\u30f3\u3068\u30c6\u30b9\u30c8\u306f\u614e\u91cd\u306b\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30ea\u30ad\u30c3\u30c9\u30ec\u30a4\u30a2\u30a6\u30c8\u30fb\u30d5\u30ec\u30ad\u30b7\u30d6\u30eb\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u6d3b\u7528<\/h3>\n<p>\u30ea\u30ad\u30c3\u30c9\u30ec\u30a4\u30a2\u30a6\u30c8\u306f\u3001\u8981\u7d20\u306e\u5e45\u3092\u30d1\u30fc\u30bb\u30f3\u30c6\u30fc\u30b8\u6307\u5b9a\uff08%\uff09\u3067\u8868\u3057\u3001\u753b\u9762\u5e45\u306b\u5408\u308f\u305b\u3066\u4f38\u7e2e\u3055\u305b\u308b\u8a2d\u8a08\u65b9\u6cd5\u3067\u3059\u3002mediaquery\u3092\u4f7f\u308f\u305a\u3068\u3082\u5e45\u8abf\u6574\u304c\u3067\u304d\u3001\u6bd4\u8f03\u7684\u30b7\u30f3\u30d7\u30eb\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002\u753b\u9762\u5e45\u306b\u5408\u308f\u305b\u3066\u67d4\u8edf\u306b\u4f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class=\"box\">\n<div class=\"row\">\n<div class=\"col-md-3 col-sm-4 col-xs-6\"><a href=\"https:\/\/www.synergy-marketing.co.jp\/blog\/mailmagazine_design\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/575_mainvisual.png\" alt=\"\u30e1\u30eb\u30de\u30ac\u3092\u30c7\u30b6\u30a4\u30f3\u3059\u308b\u30b3\u30c49\u9078\uff01HTML\u30e1\u30fc\u30eb\u306e\u4f5c\u308a\u65b9\u3082\u89e3\u8aac\" \/><\/a><\/div>\n<div class=\"col-md-9 col-sm-8 col-xs-6\"><a href=\"https:\/\/www.synergy-marketing.co.jp\/blog\/mailmagazine_design\" target=\"_blank\" rel=\"noopener\"><strong>\u30e1\u30eb\u30de\u30ac\u3092\u30c7\u30b6\u30a4\u30f3\u3059\u308b\u30b3\u30c49\u9078\uff01HTML\u30e1\u30fc\u30eb\u306e\u4f5c\u308a\u65b9\u3082\u89e3\u8aac<\/strong><\/a><\/div>\n<\/div>\n<\/div>\n<h2>HTML\u30e1\u30fc\u30eb\u4f5c\u6210\u3092\u52b9\u7387\u5316\u3059\u308b\u65b9\u6cd5<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-21377\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/674_image02.png\" alt=\"HTML\u30e1\u30fc\u30eb\u4f5c\u6210\u3092\u52b9\u7387\u5316\u3059\u308b\u65b9\u6cd5\" width=\"750\" height=\"456\" srcset=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/674_image02.png 750w, https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/674_image02-230x140.png 230w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" 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href=\"https:\/\/www.synergy-marketing.co.jp\/usecase\/easy_html_mail\/\" target=\"_blank\" rel=\"noopener\">\u89e3\u6c7a\u3067\u304d\u308b\u8ab2\u984c 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href=\"https:\/\/www.synergy-marketing.co.jp\/cloud\/synergy\/ui\/poem_03.html\" target=\"_blank\" rel=\"noopener\">\u30e1\u30fc\u30eb\u914d\u4fe1\uff1a\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30c7\u30b6\u30a4\u30f3\u9078\u629e<\/a><\/p>\n<h3>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b<\/h3>\n<p>HTML\u30e1\u30fc\u30eb\u306e\u8a2d\u8a08\u30fb\u914d\u4fe1\u30fb\u5206\u6790\u3092\u4e00\u5143\u7ba1\u7406\u3067\u304d\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u3068\u3001\u52b9\u7387\u6027\u3068\u54c1\u8cea\u304c\u683c\u6bb5\u306b\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-20760\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/629_image02.png\" alt=\"HTML\u30e1\u30fc\u30eb\u4f5c\u6210\u30c4\u30fc\u30eb\u9078\u3073\u306e4\u3064\u306e\u5fc5\u9808\u30dd\u30a4\u30f3\u30c8\u3002\u5c02\u9580\u77e5\u8b58\u4e0d\u8981\u3001\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u5145\u5b9f\u5ea6\u3001\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u9023\u643a\u3092\u78ba\u8a8d\u3059\u308b\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u56f3\u89e3\" width=\"750\" height=\"440\" srcset=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/629_image02.png 750w, https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/629_image02-230x135.png 230w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" 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href=\"https:\/\/www.synergy-marketing.co.jp\/blog\/mail-delivery-system_about\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/523_mainvisual.png\" alt=\"\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3068\u306f\uff1f\u4e3b\u306a\u6a5f\u80fd\u3084\u9078\u3073\u65b9\u3001\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u89e3\u8aac\" \/><\/a><\/div>\n<div class=\"col-md-9 col-sm-8 col-xs-6\"><a href=\"https:\/\/www.synergy-marketing.co.jp\/blog\/mail-delivery-system_about\" target=\"_blank\" rel=\"noopener\"><strong>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3068\u306f\uff1f\u4e3b\u306a\u6a5f\u80fd\u3084\u9078\u3073\u65b9\u3001\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u89e3\u8aac<\/strong><\/a><\/div>\n<\/div>\n<\/div>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>HTML\u30e1\u30fc\u30eb\u306f\u3001\u753b\u50cf\u3084\u30c7\u30b6\u30a4\u30f3\u3092\u6d3b\u7528\u3057\u3066\u5185\u5bb9\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u4f1d\u3048\u3089\u308c\u308b\u4e00\u65b9\u3001\u8868\u793a\u74b0\u5883\u306b\u3088\u3063\u3066\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u5d29\u308c\u3084\u3059\u3044\u3068\u3044\u3046\u7279\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u300c\u6700\u9069\u306a\u753b\u50cf\u30b5\u30a4\u30ba\u300d\u3092\u7406\u89e3\u3057\u3001PC\u30fb\u30b9\u30de\u30db\u53cc\u65b9\u3067\u8aad\u307f\u3084\u3059\u304f\u8868\u793a\u3055\u308c\u308b\u8a2d\u8a08\u306b\u3059\u308b\u3053\u3068\u304c\u6b20\u304b\u305b\u307e\u305b\u3093\u3002<\/p>\n<p>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u6d3b\u7528\u3084\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u306e\u30c7\u30b6\u30a4\u30f3\u30d1\u30fc\u30c4\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u9ad8\u54c1\u8cea\u306aHTML\u30e1\u30fc\u30eb\u3092\u52b9\u7387\u3088\u304f\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5c0e\u5165\u3059\u308c\u3070\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u7ba1\u7406\u3001\u5dee\u3057\u8fbc\u307f\u30bf\u30b0\u3001AB\u30c6\u30b9\u30c8\u3001\u958b\u5c01\u7387\u30fb\u30af\u30ea\u30c3\u30af\u7387\u306e\u5206\u6790\u306a\u3069\u3001HTML\u30e1\u30fc\u30eb\u5236\u4f5c\u304b\u3089\u914d\u4fe1\u30fb\u6539\u5584\u307e\u3067\u3092\u4e00\u6c17\u901a\u8cab\u3067\u6700\u9069\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u5f0a\u793e\u304c\u63d0\u4f9b\u3059\u308b\u300cSynergy!\u300d\u306f\u3001HTML\u30e1\u30fc\u30eb\u7de8\u96c6\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u7ba1\u7406\u3001\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u3001\u8a73\u7d30\u30ec\u30dd\u30fc\u30c8\u306a\u3069\u3001HTML\u30e1\u30fc\u30eb\u904b\u7528\u306b\u5fc5\u8981\u306a\u6a5f\u80fd\u3092\u6a19\u6e96\u642d\u8f09\u3057\u3066\u3044\u307e\u3059\u3002\u30b9\u30de\u30db\u3067\u3082\u5d29\u308c\u306b\u304f\u3044\u30e1\u30fc\u30eb\u5236\u4f5c\u304b\u3089\u3001\u914d\u4fe1\u52b9\u679c\u306e\u53ef\u8996\u5316\u3001\u6539\u5584\u30b5\u30a4\u30af\u30eb\u306e\u78ba\u7acb\u307e\u3067\u3092\u4e00\u8cab\u3057\u3066\u652f\u63f4\u3057\u3001\u6210\u679c\u306b\u3064\u306a\u304c\u308b\u30e1\u30fc\u30eb\u904b\u7528\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<p>HTML\u30e1\u30fc\u30eb\u306e\u54c1\u8cea\u5411\u4e0a\u3084\u5236\u4f5c\u52b9\u7387\u306b\u304a\u60a9\u307f\u306e\u65b9\u306f\u3001\u305c\u3072\u5f0a\u793e\u307e\u3067\u304a\u6c17\u8efd\u306b\u3054\u76f8\u8ac7\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a href=\"https:\/\/form.synergy-marketing.co.jp\/webapp\/form\/18784_mubb_8\/index.do\" target=\"_blank\" rel=\"noopener\">\u304a\u554f\u3044\u5408\u308f\u305b\u306f\u3053\u3061\u3089<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&lt;\u3053\u306e\u8a18\u4e8b\u3067\u308f\u304b\u308b\u3053\u3068&gt; HTML\u30e1\u30fc\u30eb\u306e\u6a2a\u5e45\u306f\u3001\u591a\u304f\u306e\u95b2\u89a7\u74b0\u5883\u3067\u8868\u793a\u5d29\u308c\u3092\u9632\u3050\u305f\u3081\u300c600px\u524d\u5f8c\u300d\u3092\u57fa\u6e96\u306b\u8a2d\u8a08\u3059\u308b\u306e\u304c\u6700\u3082\u4e00\u822c\u7684\u3067\u3042\u308b\u3002 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