title: Can't set text-area to width: 100% using bootstrap
body: <p>I'm trying to set a textarea in rails to be the width of its container.  I've tested that the css is working on the textarea.</p>
  
  <p>Form View:</p>
  
  <pre><code>&lt;%= form_tag("/pages/thank_you") do %&gt;
        &lt;div class="row"&gt;
          &lt;div class="col-md-6"&gt;
            &lt;div class="input-group"&gt;
                &lt;%= text_area_tag :message, nil, class: 'form-control text-area-wide', placeholder: 'Enter Message' %&gt;
            &lt;/div&gt;
          &lt;/div&gt;
        &lt;/div&gt;
        &lt;%= submit_tag 'Send Message', class: 'btn btn-success' %&gt;
    &lt;% end %&gt;
  </code></pre>
  
  <p>CSS:</p>
  
  <pre><code>.text-area-wide {
      -webkit-box-sizing: border-box;
         -moz-box-sizing: border-box;
              box-sizing: border-box;
      width: 100%;
  }
  </code></pre>