.content .top-part .guide li .btn1{background:url(../images/guide_1.jpg) no-repeat;background-size:100% 100%}.content .top-part .guide li .btn2{background:url(../images/guide_2.jpg) no-repeat;background-size:100% 100%}.guide .g-body .sel-tit li .btn1{background:url(../images/g_btn1.png) no-repeat;background-size:100% 100%}.guide .g-body .sel-tit li .btn2{background:url(../images/g_btn2.png) no-repeat;background-size:100% 100%}.guide .g-body .sel-tit li.active .btn1{background:url(../images/g_btn1-active.png) no-repeat;background-size:100% 100%}.guide .g-body .sel-tit li.active .btn2{background:url(../images/g_btn2-active.png) no-repeat;background-size:100% 100%}