看到http://css.w3ctech.com/ 上一个效果觉得挺赞的。
然后学些了一下。
demo地址：http://codepen.io/tianzi77/pen/mJaLWq
html结构很简单，就是一个p，2个span标签嵌套在a标签里面。
<a href="/" class="link-mallki"> 思君子兮未敢言 zhuangjia <span data-letters="思君子兮未敢言 zhuangjia"></span> <span data-letters="思君子兮未敢言 zhuangjia"></span> </a>
样式有点复杂，总体是利用动画，伪类hover前后的样式进行变化出现炫酷的效果：
body { background: black; } a { display: inline-block; font-size: 60px; margin: 30px 0 20px; } [class*="link-"] { outline: none; text-decoration: none; position: relative; line-height: 1; display: inline-block; } .link-mallki { color:#fff; -webkit-transition: color 0.5s 0.25s; transition: color 0.5s 0.25s; overflow: hidden; } .link-mallki:hover { -webkit-transition: none; transition: none; color: transparent; } .link-mallki::before { content: ''; width: 100%; height: 2px; margin: -3px 0 0 0; background: #fff; position: absolute; left: 0; top: 50%; -webkit-transform: translate3d(-100%, 0, 0); transform: translate3d(-100%, 0, 0); -webkit-transition: -webkit-transform 0.4s; transition: transform 0.4s; -webkit-transition-timing-function: cubic-bezier(0.7, 0, 0.3, 1); transition-timing-function: cubic-bezier(0.7, 0, 0.3, 1); } .link-mallki:hover::before { -webkit-transform: translate3d(100%, 0, 0); transform: translate3d(100%, 0, 0); } .link-mallki span { position: absolute; height: 50%; width: 100%; left: 0; top: 0; overflow: hidden; } .link-mallki span::before { content: attr(data-letters); position: absolute; left: 0; width: 100%; color: #abcdef; -webkit-transition: -webkit-transform 0.5s; transition: transform 0.5s; } .link-mallki span:nth-child(2) { top: 50%; } .link-mallki span:first-child::before { top: 0; -webkit-transform: translate3d(0, 100%, 0); transform: translate3d(0, 100%, 0); } .link-mallki span:nth-child(2)::before { bottom: 0; -webkit-transform: translate3d(0, -100%, 0); transform: translate3d(0, -100%, 0); } .link-mallki:hover span::before { -webkit-transition-delay: 0.3s; transition-delay: 0.3s; -webkit-transform: translate3d(0, 0, 0); transform: translate3d(0, 0, 0); -webkit-transition-timing-function: cubic-bezier(0.2, 1, 0.3, 1); transition-timing-function: cubic-bezier(0.2, 1, 0.3, 1); }
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