Either use a semi-transparent PNG or SVG image or use CSS: background-color: rgba(255, 0, 0, 0.5);. Here's an article from css3.info, Opacity, ... ... <看更多>
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Either use a semi-transparent PNG or SVG image or use CSS: background-color: rgba(255, 0, 0, 0.5);. Here's an article from css3.info, Opacity, ... ... <看更多>
... <看更多>
menu page css background-color: black; opacity: 0.5;. 結果連Menu page 上面的子元素全都繼承了 opacity: 0.5; ,而且在子元素加上 opacity: 1; ... ... <看更多>
Set background opacity From http://stackoverflow.com/questions/4183948/css-set-background-image-with-opacity - background-opacity.css. ... <看更多>