.slide_content {
        margin-top: 66px;
        height: 112px;
        position: relative;
    }

    .slide_content_li {
        width: 255px;
        height: 100%;
        transition: width 0.5s ease;
        position:absolute;
        top:0;
    }

    .slide_content .slide_content_li img {
        width: 100%;
        height: 100%;
    }
    #slide_content_li1{
        left:0;
    }
    #slide_content_li4 {
        right:0;
    }
    #slide_content_li2{
        left:275px;
    }
    #slide_content_li3{
        right:275px;
    }

    #slide_content_li1.open {
        width: 530px;
    }

    #slide_content_li2.open,#slide_content_li3.open {
        width: 805px;
    }
    #slide_content_li4.open{
        width:100%;
    }