IE6能识别下划线"_"和星号" * "，IE7能识别星号" * "，但不能识别下划线"_"， IE8能识别" \9"，但不能识别下划线"_"， 而firefox两个都不能认识,却可以识别‘!important’。等等 书写顺序，一般是将识别能力强的浏览器的CSS写在后面。下面列举常用的CSS…
September 17, 2014
css透明度的设置 （兼容所有浏览器）
一句话搞定透明背景！
.transparent_class {
filter:alpha(opacity=50);
-moz-opacity:0.5;
-khtml-opacity: 0.5;
opacity: 0.5;
}
UPDATE: I wanted to pull this post out of the archives and update it a bit because it there seems to be a good amount of interest in this subject.
Here is what each of those CSS properties is for:
- opacity: 0.5; This is the “most important” one because it is the current standard in CSS. This will work in most versions of Firefox, Safari, and Opera. This would be all you need if all browsers supported current standards. Which, of course, they don’t.
- filter:alpha(opacity=50); This one you need for IE.
- -moz-opacity:0.5; You need this one to support way old school versions of the Mozilla browsers like Netscape Navigator.
- -khtml-opacity: 0.5; This is for way old versions of Safari (1.x) when the rendering engine it was using was still referred to as KTHML, as opposed to the current WebKit .
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