using multiple dropshadows to 'outline' the sliders' texts and thus remove the need for switching from black-to-white text color which is very annoying when editing the colors. I did explicitly choose *not* to use the text-outline ( http://css-tricks.com/adding-stroke-to-web-text/ ) for Chrome/WebKit browsers as I wanted the softer outline which achieved by dropshadows; the CSS code is inspired on the linked article nevertheless, as the use of multiple dropshadows per text element strengthens the blurred 'outline' for improved legibility under all circumstances.