.thicknessLabel {
    position: absolute;
    color: white;
    font-family: Arial;
    text-align: end;
}

#thicknessDiv [id^=slider] {
    position: absolute;
    -webkit-appearance: none;
}

#thicknessDiv [id^=slider]:focus {
    outline: none;
}

/* track */
#thicknessDiv [id^=slider]::-webkit-slider-runnable-track {
    height: 3px;
}

#thicknessDiv [id^=slider]::-webkit-slider-runnable-track:hover {
    cursor: pointer;
}

/* thumb */
#thicknessDiv [id^=slider]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 12px;
    width: 12px;
    background: #20A8D8;
    margin-top: -5px;
    border-radius: 50%;
}

#transferFunctions {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url(../assets/arrow.svg);
    background-repeat: no-repeat;
    background-position-x: 106%;
    background-position-y: 5px;
    position: absolute;
    background-color: transparent;
    margin-top: 0.5em;
    right: 1em;
    width: 11em;
    border: none;
    border-bottom: 1px solid white;
    color: white;
    padding: 0.3em;
    cursor: pointer;
    outline: none;
}
#transferFunctions option {
    background-color: black;
}