.copyright{
    float:left;
    width:100%;
    margin:0.5rem 0;
    position:relative;
}
.j_copyright {
    display: block;
    margin-left:auto;
    margin-right:auto;
    width: 5rem;
    height: 1.6rem;
    background: url('/storage/master/copyright/copyright.png') no-repeat;
    background-size:100%;
}