ui-grid-header.html

<div role="rowgroup" class="ui-grid-header"> <!-- theader -->
  <div class="ui-grid-top-panel">
    <div class="ui-grid-header-viewport">
      <div class="ui-grid-header-canvas">
        <div class="ui-grid-header-cell-wrapper" ng-style="colContainer.headerCellWrapperStyle()">
          <div role="row" class="ui-grid-header-cell-row">
            <div class="ui-grid-header-cell ui-grid-clearfix" ng-repeat="col in colContainer.renderedColumns track by col.uid" ui-grid-header-cell col="col" render-index="$index"></div>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>