Created attachment 47662 [details] Vertical sliderThumb with corrected blue highlight The image for the sliderThumb on a vertical <input type="range"> Native Slider should have a blue "aqua" highlight that runs vertically. The desired optics are to emulate looking through a blue glass button to the sliderTrack beneath it. As such, the darker blue highlight in the sliderThumb should run vertically like the sliderTrack. Now, you have it right where the little gray tracking bits to the left/right (for horizontal) or above/below (for vertical) appear on the sliderThumb, but the blue highlight is not right for vertical sliderThumbs. I have attached a corrected image for your convenience. shannon norrell TEST HARNESS: ========== <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title>HTML5 Slider (input type="range") Test</title> <style type ="text/css"> /* Vertical Slider */ input[type="range"].verticalSlider{ -webkit-appearance: slider-vertical; width:20px; } input[type="range"].verticalSlider::-webkit-slider-thumb { -webkit-appearance: sliderthumb-vertical; } </style> </head> <body> <input type="range" style="height:100px;" class="verticalSlider" /> </body> </html>