/*css*/
.ser>input{display:inline-block;}
.ty-list li p{display:none;padding-left: 42px;}
.ty-list li.on p{display:block;}
.s3-pic{
    position: relative;
    display: block;
    height: 0;
    width: 100%;
    padding-top: 56.25%;}

.s3-pic img{
    position: absolute;
    top: 0;
    left: 0;
    height: auto;}