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使用css3背景渐变中的透明度来设置不同颜色的背景渐变_html/css_WEB-ITnose

WBOY
WBOYOriginal
2016-06-24 11:20:182467browse

为了添加透明度,我们使用 rgba() 函数来定义颜色结点。rgba() 函数中的最后一个参数可以是从 0 到 1 的值,它定义了颜色的透明度:0 表示完全透明,1 表示完全不透明。rgba()后面的百分比表示位置。

具体代码:

background: -webkit-linear-gradient(top, rgba(255,255,255,0.4)0%, rgba(255,255,255,0.2)75%, rgba(255,255,255,0)98%);/* Safari、Chrome */background: -o-linear-gradient(bottom, rgba(255,255,255,0.4)0%, rgba(255,255,255,0.2)75%, rgba(255,255,255,0)98%);/* Opera */background: -moz-linear-gradient(bottom, rgba(255,255,255,0.4)0%, rgba(255,255,255,0.2)75%, rgba(255,255,255,0)98%);/* Firefox */background: linear-gradient(to bottom, rgba(255,255,255,0.4)0%, rgba(255,255,255,0.2)75%, rgba(255,255,255,0)98%); /* 标准的语法(必须放在最后) */

 

注意:Internet Explorer 9 及之前的版本不支持渐变。

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