在css3之前，鼠标悬浮于按钮之上，无非是设置按钮的大小、字体颜色或者背景图片等简单的项目，但是css3的出现，可以让设置变得丰富多彩，下面就是一个css3实现的此效果。
代码如下:
蚂蚁部落 *, *:before, *:after{ margin:0; padding:0; -webkit-box-sizing:border-box; -moz-box-sizing:border-box; box-sizing:border-box; } body{ padding-top:10%; text-align:center; overflow-x:hidden; } .btn-edge{ position:relative; display:inline-block; padding:1rem 2rem; font-family:'Titillium Web' , sans-serif; font-weight:700; text-decoration:none; font-size:3rem; color:#333; background-image:-webkit-gradient(linear, left top, left bottom, from(#333), to(#333)), -webkit-gradient(linear, left top, left bottom, from(#333), to(#333)), -webkit-gradient(linear, left top, left bottom, from(#333), to(#333)), -webkit-gradient(linear, left top, left bottom, from(#333), to(#333)), -webkit-gradient(linear, left top, left bottom, from(#333), to(#333)), -webkit-gradient(linear, left top, left bottom, from(#333), to(#333)), -webkit-gradient(linear, left top, left bottom, from(#333), to(#333)), -webkit-gradient(linear, left top, left bottom, from(#333), to(#333)); background-image:-webkit-linear-gradient(#333, #333), -webkit-linear-gradient(#333, #333), -webkit-linear-gradient(#333, #333), -webkit-linear-gradient(#333, #333), -webkit-linear-gradient(#333, #333), -webkit-linear-gradient(#333, #333), -webkit-linear-gradient(#333, #333), -webkit-linear-gradient(#333, #333); background-image:linear-gradient(#333, #333), linear-gradient(#333, #333), linear-gradient(#333, #333), linear-gradient(#333, #333), linear-gradient(#333, #333), linear-gradient(#333, #333), linear-gradient(#333, #333), linear-gradient(#333, #333); background-repeat:no-repeat; -webkit-background-size:2rem 5px, 2rem 5px, 2rem 5px, 2rem 5px, 5px 2rem, 5px 2rem, 5px 2rem, 5px 2rem; background-size:2rem 5px, 2rem 5px, 2rem 5px, 2rem 5px, 5px 2rem, 5px 2rem, 5px 2rem, 5px 2rem; background-position:0 0, 100% 0, 0 100%, 100% 100%; -webkit-box-shadow:inset 0 0 0 5px rgba(255, 99, 71, 0); box-shadow:inset 0 0 0 5px rgba(255, 99, 71, 0); -webkit-transition: background-size 1s .4s, -webkit-box-shadow .4s, color .4s; transition: background-size 1s .4s, box-shadow .4s, color .4s; -webkit-transform: translateZ(0); transform: translateZ(0); } .btn-edge:hover{ color:tomato; -webkit-background-size:100% 5px, 100% 5px, 100% 5px, 100% 5px, 5px 100%, 5px 100%, 5px 100%, 5px 100%; background-size:100% 5px, 100% 5px, 100% 5px, 100% 5px, 5px 100%, 5px 100%, 5px 100%, 5px 100%; -webkit-box-shadow:inset 0 0 0 5px tomato; box-shadow:inset 0 0 0 5px tomato; -webkit-transition:background-size 1s, -webkit-box-shadow .4s .6s, color .4s .6s; transition:background-size 1s, box-shadow .4s .6s, color .4s .6s; } 蚂蚁部落
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