#myTable {
    width: 570px;
    height: 510px;
    margin: 100px auto;
    border:4px solid #ba1809;
}
td {
    position:relative;
    font-size: 0;
}
.select{
    width:100%;
    height:100%;
    position:absolute;
    left:0;
    top:0;
    background:url(../img/123.png) no-repeat;
    /* display:none; */
}
#start {
    cursor: pointer;
}