原理：
最外层放水平平铺的背景，第二层放左边，第三层放右边，注意这个做法背景图不能透明
结构:
<div class="module-title">
<span class="left">
<span class="right"></span>
</span>
</div>
样式：
.module-title {
height:33px;
background: url(../images/more-title.png) 0 -33px repeat-x;
text-indent: 0;
}
.module-title .left{
display:inline-block;
height: 33px;
line-height: 34px;
padding-left:30px;
background: url(../images/more-title.png) 0 0 no-repeat;
}
.module-title .right{
display:inline-block;
min-width:4em;
height: 33px;
padding-right:48px;
line-height: 34px;
background: url(../images/more-title.png) right -66px no-repeat;
text-align:center;
}
背景图: