<div id="container" class="chart treemap has-legend">
  <div class="outer-container">
    <div class="inner-container">
      <div class="treemap-container">
        <div class="title-container" display="inline-block">
          <text class="title"></text>
        </div>
        <svg>
          <g class="treemap">
            <g>
              <rect class="treerect leafnode"></rect>
              <text>0</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>1</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>2</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>3</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>4</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>5</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>6</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>7</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>8</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>9</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>10</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>11</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>12</text>
            </g>
            <g>
              <rect class="treerect leafnode"></rect>
              <text>13</text>
            </g>
            <g>
              <rect class="treerect rootnode"></rect>
              <text>NaN</text>
            </g>
          </g>
        </svg>
        <div class="parent-controls">
          <button id="goto-parent">⇪ null</button>
        </div>
      </div>
    </div>
  </div>
  <div class="tooltip"><ul id="tooltip-values"></ul></div>
</div>
