galaxy/client/docs/galaxy-panels.md

Panel (toolMenuContainer)

<div style="height: 200px;">
  <div style="position: absolute; width: 250px; height: 200px; border: dotted gray 1px">
    <div class="unified-panel-header">
      <div class="unified-panel-header-inner">
        Header
      </div>
    </div>
    <div class="unified-panel-body">
      <div class="toolMenuContainer">
      one<br>
      two<br>
      three<br>
      </div>
    </div>
  </div>
</div>