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  <author_name>Hamachiya2</author_name>
  <author_url>https://blog.hatena.ne.jp/Hamachiya2/</author_url>
  <blog_title>ぼくはまちちゃん！</blog_title>
  <blog_url>https://blog.hamachiya.jp/</blog_url>
  <categories>
  </categories>
  <description>こんにちはこんにちは！！ 今日はちょっとCSSのメモです！ 半透明について！ opacityを使った透過 #testOpacity { -ms-filter:&quot;progid:DXImageTransform.Microsoft.Alpha(Opacity=40)&quot;; /* IE */ filter: alpha(opacity=40); /* IE */ -moz-opacity:0.4; /* Firefox(old) */ -khtml-opacity: 0.4; /* Safari(old) */ opacity: 0.4; } Opacity test! opacityは子要素まで全て…</description>
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  <image_url></image_url>
  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2012-05-06 00:00:00</published>
  <title>CSSで半透明、opacityとrgbaの違い</title>
  <type>rich</type>
  <url>https://blog.hamachiya.jp/entry/20120506/opacity_rgba</url>
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