wxml:
<view class="line">
<span>到底啦，我是有底线的</span>
</view>
wxss:
.line{
width: 90%; /* 分隔线的长度 */
margin: auto;
height: 1px; /* 分隔线粗细 */
text-align: center;
font-size: 24rpx;
color: #aaa;
background: #ccc;
margin-top: 5px;
margin-bottom: 22px;}.line span{
position: relative;
top: -8px;
background: #fff;
padding: 0px 10px;
}