利用:before和:after伪类制作CSS3 圆形按钮含demo

浏览数：51 / 时间：2015年06月09日

要求

必备知识

基本了解CSS语法,初步了解CSS3语法知识。
开发环境

Adobe Dreamweaver CS6
演示地址

演示地址

预览截图(抬抬你的鼠标就可以看到演示地址哦):

制作步骤:

一, <head>标签结构

下面代码中使用了CSS3无前缀脚本prefixfree.js,可以省去CSS3中前缀“-moz”、“-webkit”、“-o”、“-ms”，如对该脚本不了解的可以点击下面链接哦:CSS3无前缀脚本prefixfree.js与Animatable使用介绍

<head>
<meta charset="utf-8">
<title>button</title>
<script src="js/jquery.js" type="text/javascript"></script>
<script src="js/prefixfree.min.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="css/button.css" />
<script type="text/javascript">
/*这里采用淡入效果试试*/
$(function(){
    $(".bt").css("opacity","1");
});
</script>
</head>

二, <body>标签结构

<body>
      <div class="bt">
          <div class="button"></div>
          <div class="button2"></div>
          <div style="clear:both"> </div> 
      </div>
</body>

三，CSS代码

* {
    padding: 0;
    margin: 0;
}
/* 清除浮动 */
.clearfix:after {
    content: "";
    display: table;
    clear: both;
}
html, body {
    height: 100%;
}
body {
    font-family: "Microsoft YaHei";
    background: #E1E1E1;
    font-weight: 300;
    font-size: 15px;
    color: #333;
    overflow: hidden;
}
a {
    text-decoration: none;
}
/*按钮 阴影无扩展 */
.bt {
    margin: 100px auto;
    display: block;
    width: 350px;
    opacity:0;
    border-bottom: 1px solid #C5C5C5;
    border-top: 1px solid #C5C5C5;
    box-shadow: 0 1px 0 #F6F6F6, 0 1px 0 #F6F6F6 inset;
    transition: all 0.5s ease-in;
}

.button:before, .button2:before {
    content: "";
    width: 130px;
    height: 130px;
    display: block;
    z-index: -1;
    position: relative;
    background: #ddd;
    left: -15px;
    top: -15px;
    border-radius: 65px;
    box-shadow: inset 2px 2px 4px rgba(0,0,0,0.4);
}
.button:after, .button2:after {
    content: "注册";
    color: #09F;
    font-size: 20px;
    width: 100%;
    height: 100%;
    line-height: 100px;
    text-align: center;
    position: absolute;
    top: 0;
    display: block;
}
.button2:after {
    content: "登入";
    word-spacing: 25px;
    color: #A0D989;
}
.button, .button2 {
    float: left;
    margin: 50px auto;
    cursor: pointer;
    height: 100px;
    width: 100px;
    display: block;
    position: relative;
    color: black;
    text-align: center;
    line-height: 100px;
    border-radius: 50px;
    box-shadow: 2px 2px 4px rgba(0,0,0,0.4);
    background: #FFF;
    transition: all 0.5s ease-in;
}
.button {
    float: left;
}
.button2 {
    float: right;
}