淡入淡出背景但不显示文本 [英] Fade Background but NOT Text

问题描述

我对div应用了CSS淡入/淡出解决方案，我对此很满意. 但是我只想将其应用于背景，而不是文本.我需要文字始终不透明.

I have applied a CSS fade in/out solution to a div, which im happy with, for the most part. However I only want to apply it to the background, not the text. I need the text to be fully opaque at all times.

请参阅示例: http://jsfiddle.net/howiepaul/gUAPV/33/

a.tab {background-color:#d4d4d4;
font-family: arial;
font-weight: bold;}

a.tab:hover {
opacity:1;
animation: tickhov 1.5s;
-moz-animation: tickhov 1.5s; /* Firefox */
-webkit-animation: tickhov 1.5s; /* Safari and Chrome */}
@-ms-keyframes tickhov {from {opacity:0.2;} to {opacity:1;}}
@-moz-keyframes tickhov /* Firefox */ {from {opacity:0.2;} to {opacity:1;}}
@-webkit-keyframes tickhov /* Safari and Chrome */ {from {opacity:0.2;} to {opacity:1;}}

a.tab{
opacity:0.2;
animation: letgo 1.5s;
-moz-animation: letgo 1.5s; /* Firefox */
-webkit-animation: letgo 1.5s; /* Safari and Chrome */}
@-ms-keyframes letgo {from {opacity:1;} to {opacity:0.2; visibility: hidden; display: none;}}
@-moz-keyframes letgo /* Firefox */ {from {opacity:1;} to {opacity:0.2; visibility: hidden; display: none;}}
@-webkit-keyframes letgo /* Safari and Chrome */ {from {opacity:1;} to {opacity:0.2; visibility: hidden; display: none;}}

任何帮助都会感激不尽.

Any help would be gratefully received.

非常感谢 豪伊

推荐答案

您应该在background-color而不是opacity上设置动画.仅供参考，如果这就是您要做的所有事情，则应使用过渡而不是动画，它们要简单得多.

You should be animating on background-color not opacity. FYI if this is all you're doing you should use transitions instead of animations, they're much simpler.

jsFiddle

a.tab {
    position:relative;
    font-family: arial;
    font-weight: bold;
    background-color:rgba(212,212,212,.2);
    -moz-transition:background-color 1.5s ease;
    -webkit-transition:background-color 1.5s ease;
    transition:background-color 1.5s ease;
}

a.tab:hover {
    background-color:rgba(212,212,212,1);
}

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