Base
<div class="rui-irs">
<input type="text" value="" min="0" max="1000" step="1" data-irs-from="500">
<span class="rui-irs-value"></span>
</div>
Double
<div class="rui-irs">
<input type="text" value="" min="10" max="1000" step="10" data-irs-from="250" data-irs-to="750" data-irs-separator=" - ">
<span class="rui-irs-value"></span>
</div>