title: customizing bootstrap form-control on select option
body: <p>I'm using bootstrap's form-control class to keep a consistent style between my form input and those that requires a select option. However using bootstrap's form-control on select elements gives it the ugly drop-down button in firefox.<a href="https://i.stack.imgur.com/tPMuJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tPMuJ.png" alt="enter image description here"></a></p>
  
  <p>What I'd like to achieve is this </p>
  
  <p><a href="https://i.stack.imgur.com/ENpAO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ENpAO.png" alt="enter image description here"></a></p>
  
  <p>However looking through the css part I have no way of identifying which part it is that I should override as there does not seem to be a css specifying the drop-down arrow's decoration.</p>
  
  <p>This is how the current code looks like</p>
  
  <pre><code>&lt;div class="form-group row"&gt;
      &lt;label for="industry" class=""&gt;Industry :&lt;/label&gt;
      &lt;select name="industry" class="form-control"&gt;
          &lt;option value="" disabled selected&gt;Select Industry&lt;/option&gt;
          &lt;option value="financial-service"&gt;Financial Services&lt;/option&gt;
          &lt;option value="healthcare-lifescience"&gt;Healthcare &amp; Life Science&lt;/option&gt;
          &lt;option value="communications"&gt;Communications&lt;/option&gt;
      &lt;/select&gt;
  &lt;/div&gt;
  </code></pre>