#banner {
                height: 300px;
                overflow:hidden;
            }
            #banner ul {
                width: 100000%;
            }
            #banner li {
                height: 300px;
                width: 1000px;
                display: block;
                float:left;
                transition: margin-left 2s;
            }
            #banner li.move-left {
                margin-left: -1000px;
            }
            #banner .banner1 {
            }
            #banner img {
                width: 100%;
                height: 100%;
            }
            #banner .banner2 {
            }
            #banner .banner3 {
            }
            #banner .banner4 {
            }