div.picker {
    width: 256px;
    height: 256px;
    background-image: linear-gradient(rgba(0,0,0,0), #000), linear-gradient(90deg, #fff, #ff0000);
    border: 1px solid #cccccc;
    cursor: pointer;
    position: static;
}

div.color_preview {
    width: 24px;
    height: 24px;
    border: 1px solid #cccccc;
    position: inline;
}

div.rainbow {
    width: 256px;
    height: 24px;
    background-image: linear-gradient(to right, hsl(0, 100%, 50%), hsl(60, 100%, 50%), hsl(120, 100%, 50%), hsl(180, 100%, 50%), hsl(240, 100%, 50%), hsl(300, 100%, 50%), hsl(360, 100%, 50%));
    border: 1px solid #cccccc;
    cursor: pointer;
}

div.picker_circle_wrapper {
    position: absolute;
    left: 0px;
    top: 0px;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    cursor: pointer;
}

div.picker_circle {
    position: relative;
    width: 12px;
    height: 12px;
    left: 8px;
    top: 8px;
    margin: -7px 0 0 -7px;
    border: 1px solid #fff;
    border-radius: 50%;
    cursor: pointer;
}

div.rainbow_bar_wrapper {
    position: absolute;
    width: 10px;
    height: 34px;
    left: 1300px;
    top: 55px;
    margin: -17px 0 0 -5px;
    cursor: pointer;
}

div.rainbow_bar {
    position: relative;
    width: 6px;
    height: 30px;
    left: 5px;
    top: 17px;
    margin: -15px 0 0 -4px;
    border: 1px solid #000;
    border-radius: 5px;
    cursor: pointer;
}