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n.Opacity; puzzling; difficult to understand; vague
Plural: opacities
css opacity property syntax
Function:Set the opacity level of the element.
Syntax: opacity: value|inherit;
Description: value Specifies opacity. From 0.0 (fully transparent) to 1.0 (fully opaque). inherit should inherit the value of the opacity attribute from the parent element.
Note: IE8 and earlier versions support alternative filter attributes. For example: filter:Alpha(opacity=50).
css opacity property example
<!DOCTYPE html> <html> <head> <style> div { background-color:red; opacity:0.5; filter:Alpha(opacity=50); /* IE8 以及更早的浏览器 */ } </style> </head> <body> <div>本元素的不透明度是 0.5。请注意,文本和背景色都受到不透明级别的影响。</div> </body> </html>
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