.u-radio, .u-checkbox {
    position: relative;
    display: inline-block;
    *zoom: 1;
    *display: inline;
}

.u-radio input[type="radio"],
.u-checkbox input[type="checkbox"] {
    position: absolute;
    left: 0;
    top: 0;
    width: 0;
    height: 0;
    visibility: hidden;
}