li {
    list-style-type: none;
}

a {
    color: #000;
    text-decoration: none;
}
/*update_case1*/
.update_case1 {
    max-width: 1200px;
    margin: 0 auto;
}

    .update_case1 ul li {
        float: left;
        margin-right: 20px;
        margin-bottom: 20px;
        width: calc((100% - 40px)/3);
        background: #f0f0f0;
    }

        .update_case1 ul li .update_case_pic {
            height: 200px;
            overflow: hidden;
        }

        .update_case1 ul li img {
            width: 100%;
        }

        .update_case1 ul li .case_tit {
            display: block;
            font-size: 14px;
            text-align: center;
            padding: 16px 0px;
            position: relative;
        }

            .update_case1 ul li .case_tit span {
                position: relative;
                z-index: 2;
                padding: 0px 10px;
                width: 100%;
                box-sizing: border-box;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
                height: 24px;
                line-height: 24px;
                display: block;
            }

            .update_case1 ul li .case_tit:before {
                content: "";
                z-index: 1;
                position: absolute;
                left: 0px;
                top: 0px;
                width: 100%;
                height: 100%;
                background-color: #f60;
                background-color:;
                -webkit-transition: -webkit-transform .38s cubic-bezier(.4,0,.2,1);
                transition: -webkit-transform .38s cubic-bezier(.4,0,.2,1);
                transition: transform .38s cubic-bezier(.4,0,.2,1);
                transition: transform .38s cubic-bezier(.4,0,.2,1),-webkit-transform .38s cubic-bezier(.4,0,.2,1);
                transform: scaleY(0);
                -webkit-transform: scaleY(0);
                -moz-transform: scaleY(0);
                transform-origin: 50% 100% 0;
                -webkit-transform-origin: 50% 100% 0;
                visibility: hidden\9;
            }

        .update_case1 ul li:hover .case_tit:before {
            transform: scaleY(1);
            -webkit-transform: scaleY(1);
            -moz-transform: scaleY(1);
            transform-origin: 50% 0 0;
            -webkit-transform-origin: 50% 0 0;
        }

        .update_case1 ul li:hover .case_tit {
            color: #fff;
        }

        .update_case1 ul li:nth-child(3n) {
            margin-right: 0px;
        }