.imgBox{
            width: 543px;
            height: 197px;
            margin: 0 auto;

        }

        .imgBox img{
            width: 543px;
            height: 197px;
            margin: 0 auto;
            padding-top: 0px;

        }

        .img1{
            display: block;
        }

        .img2{
            display: none;
        }

        .img3{
            display: none;
        }