[转载]CSS从大图片上截取小图标的操作 - 翟中龙 - 博客园

.icon
{
    background: url(imges/tabicons.png) no-repeat;
    width: 18px;
    line-height: 18px;
    display: inline-block;
}
.icon-set
{
 background-position: -380px -200px;
}

.icon-add
{
 background-position: -20px 0px;
}

 样式调用示例

<form id="form1" runat="server">
    <div class="icon icon-sys">
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</div>
    </form>