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            </a>
          </li>
        </ul>
        <br /><br />
        <p style="max-width: 700px; margin: auto">
          This post describes how to add a tooltip to a
          <a href="https://www.d3-graph-gallery.com/histogram">histogram</a>
          with d3.js. it can be useful in case your interested to know what are
          the threshold around each bin. Find more example in the
          <a href="../histogram.html">histogram section</a>. This example works
          with 