.ui-content {
    position: relative;
    overflow: hidden;
}

#options-preview {
    width: 80%;
    margin: auto;
}

#options-range {
    width: 100%;
    height: 27%;
}

#options-colors {
    width: 100%;
    height: 50%;
    position: absolute;
    bottom: 0px;
    border: 4px solid #000;
}

.options-colors {
    width: 25%;
    height: 100%;
    float: left;
    border: 4px solid #000;
}

#options-colors-white {
    background-color: #fff;
    left: 10px;
}

#options-colors-red {
    background-color: #f00;
    left: 90px;
}

#options-colors-green {
    background-color: #0f0;
    left: 170px;
}

#options-colors-blue {
    background-color: #00f;
    left: 250px;
}
