CSS3 opacity プロパティ
 完全な CSS3 リファレンス
例
Set the opacity level for a div element:
Try it yourself »
More examples at the bottom of this page.
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ブラウザ・サポート
opacity property is supported in all major browsers.
注: IE8 and earlier supports an alternative, the filter property. Like: filter:Alpha(opacity=50).
定義と用法
opacity property sets the opacity level for an element.
| デフォルト値: |
1 |
| 継承: |
no |
| バージョン: |
CSS3 |
| JavaScript構文: |
object.style.opacity=0.5 |
構文
| 値 |
説明 |
| value |
Specifies the opacity. From 0.0 (fully transparent) to 1.0
(fully opaque) |
| inherit |
The value of the opacity property should be inherited from the parent
element |
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Try it Yourself - Examples |
Change the opacity for an element
This example demonstrates how to use a JavaScript to change the opacity for an element.
完全な CSS3 リファレンス
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