<!--This is code for a default range slider in HTML5. -->
<input type="range" min="1" max="100" value="50">
<!--Where the min and max attributes are the min and max of the range -->
<!--The value is a number (never empty) that represents the current value of the range.
<!--Default value is 50.-->
<input type="range" min="1" max="100" value="50" step="10">
<!--In this example, the step attribute determines a fixed interval-->
<!--between each value. Can be decimal.-->
<!--Instead of being able to select 1,2...99,100 you could only
<!--select 0,10...90,100-->