Themes, templating and responsive design

Theme support

Select2 supports custom themes using the theme option so you can style Select2 to match the rest of your application.

These are using the classic theme, which matches the old look of Select2. 






Templating




  Various display options of the Select2 component can be changed:
  You can access the <option> element
  (or <optgroup>) and any attributes on those elements
  using .element.





  Templating is primarily controlled by the
  templateResult
  and templateSelection
  options.





  

    
  










Responsive design - Percent width




  Select2's width can be set to a percentage of its parent to support
  responsive design. The two Select2 boxes below are styled to 50% and 75%
  width respectively.





  

    
  

  

    
  









  Select2 will do its best to resolve the percent width specified via a
  css class, but it is not always possible. The best way to ensure that
  Select2 is using a percent based width is to inline the
  style declaration into the tag.