如何在悬停时更改Font Awesome堆叠图标的颜色

Question

我正在使用两个Font Awesome图标:

• fa-circle-thin
• fa-user-plus

它们堆叠在一起,以给出圆形图标外观.

<span class="fa-stack fa-sm">
 <i class="fa fa-circle-thin fa-stack-2x"></i>
 <i class="fa fa-user-plus fa-stack-1x "></i>
</span>

当我将鼠标悬停在上面时,我想要将圆圈填充为黑色并将其fa-user-plus更改为白色.我怎样才能做到这一点？

见JSFiddle:http://jsfiddle.net/ReturnOfTheMac/Lwdaen75/

Answer 1

要获得所需效果,请fa-circle在堆栈上添加一个图标,该图标在display(opacity:0.0)和solid(opacity:1.0)上是透明的:hover.

例如(也在JSFiddle:http://jsfiddle.net/2hxxuv52/5/):

HTML

<span class="fa-stack fa-sm">
  <i class="fa fa-circle fa-stack-2x "></i>
  <i class="fa fa-circle-thin fa-stack-2x"></i>
  <i class="fa fa-user-plus fa-stack-1x "></i>
</span>

CSS

.fa-stack        .fa { color: black; }
.fa-stack        .fa.fa-circle-thin { color: black; }
.fa-stack        .fa.fa-circle { opacity:0.0; color:black; }

.fa-stack:hover  .fa.fa-user-plus { color: white; }
.fa-stack:hover  .fa.fa-circle-thin { color: black; }
.fa-stack:hover  .fa.fa-circle { opacity:1.0 }