title: Drag the Range of a UI Input Range Slider
body: <pre><code>&lt;---------[]=====================================[]--------&gt;
  
  0         10                                     90       100
  </code></pre>
  
  <p>I need an input range slider with two handles to select a range, and <strong><em>the ability to drag the range</em></strong> (the equals signs in the above diagram). So, in the above example, start=10 and end=90, and it is dragged left by shifting the entire line between the two handles:</p>
  
  <pre><code>&lt;[]=====================================[]------------------&gt;
  
  0                                       80                 100
  </code></pre>
  
  <p>Now Start is 0 and End is 80, accomplished without dragging the handles.</p>
  
  <p>What library offers this functionality?</p>
  
  <p>Thank you.</p>