#lottery {
    width: 586px;
    height: 526px;
    margin: 0 auto;
    border: 8px solid #45a6dc;
}

#lottery table {
    background-color: #ff0
}

#lottery table td {
    position: relative;
    width: 190px;
    height: 170px;
    text-align: center;
    color: #333;
    font-index: -999
}

#lottery table td img {
    display: block;
    width: 190px;
    height: 170px
}

#lottery table td.active .mask {
    display: block
}

.mask {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    background-color: rgba(252, 211, 4, .5);
    display: none
}