Selectable in HTML <select> tag

Question

Is there any way to make the option group selectable?

<select>
   <optgroup value="0" label="Parent Tag">
      <option value="1">Child Tag</option>
      <option value="2">Child Tag</option>
   </optgroup>
</select>

Answer 1

@grifos's answer is not supported in WebKit Browsers and did not work when Tested in IE 11.

One suggestion might be to use an Unordered/Ordered list and to style it with CSS, then add the functionality with JavaScript/jQuery.

I have seen a nice implementation of this in the past, it can look really slick!