If so, how? I want to make the slider look like this:
Which involves changing the color of the draggable dot and the slider bar, as well as changing their sizes. Any help would be appreciated.
you can do it in WebKit for sure. here's a quick example: http://jsfiddle.net/jalbertbowdenii/7Nzgw/3/
pretty sure you can style cross-browser if you're using modernizr, @ least for modern browsers..but i am assuming. you can find more information here: http://davidbcalhoun.com/2011/implementing-iphone-slider-unlock-with-input-type-range