.section-rgb {
    height: 20rem;
    text-align: center;
}

select {
    width: 100%;
    height: calc(100% - 1.5rem);
}

.colorpicker {
    display: inline-block;
    height: 38px;
    padding: 0 30px;
    width: 100%;
    color: #555;
    background-color: transparent;
    border-radius: 4px;
    border: 1px solid #bbb;
    cursor: pointer;
    box-sizing: border-box; }
.colorpicker:hover,
.colorpicker:focus {
    color: #333;
    border-color: #888;
    outline: 0; }

.spacer-row {
    height: 2rem;
}