<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.container{
width: 1000px;
margin: 10px auto;
border: 1px solid red;
}
h3.title {
color: #F2AE11;
font-size: 1.3em;
margin-bottom: 3em;
text-align: center;
font-weight: 500;
line-height: 1.1;
}
h3.title span {
display: block; /*設置為塊級元素會獨占一行形成上下居中的效果*/
font-size: 3em;
color: #212121;
position: relative; /*定位橫線(當橫線的父元素)*/
}
h3.title span:before, h3.title span:after {
content: ''; /*CSS偽類用法*/
position: absolute; /*定位背景橫線的位置*/
top: 52%;
background: #494949; /*寬和高做出來的背景橫線*/
width: 9%;
height: 2px;
}
h3.title span:before{
left: 25%; /*調整背景橫線的左右距離*/
}
h3.title span:after {
right: 25%;
}
</style>
</head>
<body>
<div class="container">
<h3 class="title">Welcome to <span>Snapshot</span></h3>
<div class="row">
<img src="images/hz01.jpg" width="300" height="200">
</div>
</div>
</body>
</html>
總結:
1,這種方法比利用邊框和背景圖做出的效果更好更利於控制和修改
2,缺點是偽類在IE8上兼容有些問題