title: How Can I Put Bootstrap Modal in Horizontally center?
body: <p>I have a modal that I resize it.I want large width size of modal and horizontally centered.
  In addition when I resize it to smaller it's correct.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>&lt;style&gt;
      #PopupModel   {width:60%;}
  
  .modal {
  }
  .vertical-alignment-helper {
      display:table;
      height: 100%;
      width: 100%;
  }
  .vertical-align-center {
      /*/To center vertically*/ 
      display: table-cell;
      vertical-align: middle;
  }
  .modal-content {
       /*Bootstrap sets the size of the modal in the modal-dialog class, we need to inherit it*/ 
      width:inherit;
      height:inherit;
       /*To center horizontally*/ 
     
  }
  
  &lt;/style&gt;</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="modal fade" id="PopupModel" tabindex="-1" role="dialog" aria-labelledby="gridSystemModalLabel" &gt;
      &lt;div class="modal-dialog" role="document" &gt;
          &lt;div class="modal-content" &gt;    
  
              &lt;div class="modal-header"&gt;
  
                  &lt;h4 class="modal-title" id="gridSystemModalLabel"&gt;Product Define&lt;/h4&gt;
  
  
              &lt;/div&gt;
              &lt;div class="modal-body" id="modelResult"&gt;
                  &lt;br /&gt;
              &lt;/div&gt;
  
  
          &lt;/div&gt;&lt;!-- /.modal-content --&gt;
          &lt;div class="modal-footer"&gt;
              &lt;div class=""&gt;
                  &lt;button type="submit" class="btn btn-primary" style="width: 100px; height: 38px;"&gt;save&lt;/button&gt;
                  &lt;button type="button" class="btn" data-dismiss="modal" style="width: 70px;height: 38px; "&gt;cancel&lt;/button&gt;
              &lt;/div&gt;
          &lt;/div&gt;
      &lt;/div&gt;&lt;!-- /.modal-dialog --&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>I test some ways but not worked for me .any help ?</p>