.left_nav{
    /*width: 220px;*/
    width: 100%;
    height: 970px;
    /*height: auto;*/
    float: left;
    background: -webkit-linear-gradient(#0089DA, #5FC3FE); /* Safari 5.1 - 6.0 */
    background: -o-linear-gradient(#0089DA, #5FC3FE); /* Opera 11.1 - 12.0 */
    background: -moz-linear-gradient(#0089DA, #5FC3FE); /* Firefox 3.6 - 15 */
    background: linear-gradient(#0089DA, #5FC3FE); /* 标准的语法 */
    background: #0089DA\9;
}
.left_nav .top{
    height: 60px;
    width: 100%;
    /*border-bottom: 1px solid rgba(238, 238, 238, 0.42);*/
    background: url("../images/dian-2.png") bottom repeat-x;
}
.left_nav .top .wrap{
    width: 72%;
    /*width: 160px;*/
    margin: 0 auto;
}
.left_nav .top h1{
    line-height: 60px;
    font-size: 14px;
    display: block;
}
.left_nav .top .yellow{
    width: 3px;
    height: 20px;
    background: #FBE600;
    float: left;
    margin: 20px 15px 0px 0px;
}
.left_nav .web{
    width: 160px;
    /*width: 72%;*/
    height:32px ;
    background: #006DCD;
    display: block;
    margin: 0 auto;
    margin-top: 15px;
    color: #fff;
    font-size: 12px;
}