.consulting{margin-bottom: 60px;} .content_nav ul{width: 100%; overflow: auto;overflow-y: hidden;} .content_nav li{height: 100px; float: left; text-align: center; width: 160px; margin-right: 30px; background-color: #f0f7ff!important; background-position: center 18px!important;} .content_nav li:nth-child(3){width: 240px;} .content_nav li:last-child{margin-right: 0; } .content_nav li:first-child{background: url(../img/patent_consulting_ioc_1.png) no-repeat;} .content_nav li:nth-child(2){background: url(../img/patent_consulting_ioc_2.png) no-repeat;} .content_nav li:nth-child(3){background: url(../img/patent_consulting_ioc_3.png) no-repeat;} .content_nav li:nth-child(4){background: url(../img/patent_consulting_ioc_4.png) no-repeat;} .content_nav li:last-child{background: url(../img/patent_consulting_ioc_5.png) no-repeat;} .content_nav span{display: block; padding-top: 69px; color: #647fc8;} .content_nav li.active{background-color: #58a3ff!important;} .content_nav li.active span{color: #fff;} .content_nav li:first-child.active{background: url(../img/patent_consulting_ioc_1_atv.png) no-repeat;} .content_nav li:nth-child(2).active{background: url(../img/patent_consulting_ioc_2_atv.png) no-repeat;} .content_nav li:nth-child(3).active{background: url(../img/patent_consulting_ioc_3_atv.png) no-repeat;} .content_nav li:nth-child(4).active{background: url(../img/patent_consulting_ioc_4_atv.png) no-repeat;} .content_nav li:last-child.active{background: url(../img/patent_consulting_ioc_5_atv.png) no-repeat;} .content_nav li {position: relative; margin-bottom: 28px;} .content_nav li img{position: absolute; bottom: -31px; display: none;right: 44%;} .content_nav li.active img{display: initial;} .content_info{padding: 20px; min-height: 313px; width: 100%; background: #f0f7ff; border: 1px solid #d9eaff;} .content_info h2{margin: 0 0 20px 0; color: #7fb6ff;} .content_info p{font-size: 18px;} .case{background: #f0f7ff;padding-bottom: 20px;} .case_content li{float: left; margin: 0 22px 20px 0;} .case_content li:nth-child(5n+0){margin-right: 0;} footer{height: 122px; background: #3c3d43; text-align: center; line-height: 122px;}