我想在菜单列表上进行过渡时,我需要将边框底部更改为边框顶部。 我该怎么做?更改边框底部到边框顶部
.sliding-middle-out {
\t display: inline-block;
\t position: relative;
\t padding-bottom: 3px;
}
.sliding-middle-out:after {
\t content: '';
\t display: block;
\t margin: auto;
\t height: 3px;
\t width: 0px;
\t background: transparent;
\t transition: width .5s ease, background-color .5s ease;
}
.sliding-middle-out:hover:after {
\t width: 100%;
\t background: blue;
}
<li class="scroll sliding-middle-out"><a href="#features">Features</a></li>
您希望边框从底部过渡到顶部(垂直穿过元素,或者只是淡入/淡入)?或者你想改变哪个边框被彩色/突出显示? –
而不是使用':之后'使用':before' http://jsbin.com/hivetigogu/1/edit –