建站常识

1，这种方法比利用边框和背景图做出的效果更好更利于控制和修改
2，缺点是伪类在IE8上兼容有些问题

.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; font-size: 3em;color: #212121;position: relative;}
h3.title span:before, h3.title span:after {content: ''; position: absolute; top: 52%;background: #494949;       
width: 9%;height: 2px;}
h3.title span:before{left: 25%; } 
h3.title span:after {right: 25%;}

 <div class="container">
  <h3 class="title">Welcome to <span>www.021jz.com.cn</span></h3>
 </div>