.pd-info .color-radio {
    display: inline-block;
    padding: 3px;
    border: 1px solid #DCDCDC;
    position: relative;
    line-height: normal;
    margin: 0 0 6px 0;
}

.pd-info .color-radio input {
    visibility: hidden;
    position: absolute;
    z-index: -1;
    width: 0;
    height: 0;
}

#os_size .color-radio {
    display: inline-block;
    margin: 0 -2px 0 0;
    /*width: 20px;*/
    text-align: center;
    font-size: 16px;
    background: #C5CE17;
    border: 2px solid #fff;
    color: #fff;
}

.pd-info .color-radio.checked {
    border-color: #1A7292;
}

#os_size .color-radio.checked {
    background: #1A7292;
}