body {
    margin: 0px;
    padding: 0px;
}

#solid {
    width: 100%;
    position: relative;
    height: auto;
    clear: both;
}

    #solid .solid0, #solid .solid1, #solid .solid2, #solid .solid3, #solid .solid4 {
        position: absolute;
        left: 0px;
        top: 0px;
        width: 100%;
        display: none;
    }

    #solid .solid0 {
        background: #78c4db;
    }

    #solid .solid1 {
        background: #c5c9db;
    }

    #solid .solid2 {
        background: #e7dfd1;
    }

    #solid ul {
        margin: 0px;
        padding: 0px;
        list-style: none;
    }

        #solid ul li {
            position: absolute;
            top: 0px;
            width: 100%;
            display: none;
            cursor: pointer;
            overflow: hidden;
        }

            #solid ul li img {
                width: 100%;
                overflow: hidden;
            }

    #solid #btt {
        width: 100%;
        height: 55px;
        left: 50%;
        position: absolute;
        margin-left: -50%;
        bottom: 20px;
    }

        #solid #btt span {
            position: absolute;
            top: 15px;
            left: 45%;
            display: block;
            width: 30px;
            height: 8px;
            margin: 0 15px;
            text-align: center;
            background: #3d3d3d;
            z-index: 1000;
            cursor: pointer;
            filter: alpha(opacity=70); /*IE滤镜，透明度50%*/
            -moz-opacity: 0.7; /*Firefox私有，透明度50%*/
            opacity: 0.7; /*其他，透明度50%*/
        }