This custom input range slider is awesome in many useful ways particularly a wide range of numbers is equally available to the user, there is a known upper and lower limit to the range and the user is expected to “play” with their input, adjusting it frequently. Designed by Trevan Hetzel
If you are having trouble with the pen, try the archived copy on GitHub
See the Pen Custom range input slider with labels by Trevan Hetzel (@trevanhetzel) on CodePen.0