.preview {
    width: 230px;
    height: 230px;
    margin: 10px 0;
    border: solid 1px #777;
}
.color-squares {
    background: #777;
    padding: 10px;
    display: inline-block;
}
.color-square {
    display: inline-block;
    height: 50px;
    width: 50px;
    margin: 10px;
    cursor: pointer;
}