<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
hr {
33.33%;
height: 1px;
margin: 0;
background-color: #6495ED;
display: inline-block; // hr是块级元素
vertical-align: middle;
}
span {
color: #000;
}
</style>
</head>
<body>
<div class="box">
<hr />
<span>文字居中显示</span>
<hr />
</div>
</body>
</html>