横线用到了伪类进行实现。

css:

h4,h5 {    text-align: center;}h5{    color: gray;}.onimg_title:before{    display: inline-block;    position: relative;    top:-7px;    right: 20px;    content: "";    width: 100px;    height: 0px;    border: 1px solid black;}.onimg_title:after{    display: inline-block;    position: relative;    top:-7px;    left: 20px;    content: "";    width: 100px;    height: 0px;    border: 1px solid black;}

　　

html:

     
    
      
  买实惠
    
      
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