Tab 1

<div class="tab">

  <button class="tablinks" onclick="(event, 'DNA Sequence')">DNA Sequence</button>

  <button class="tablinks" onclick="(event, 'Amino Acid Sequence')">Amino Acid Sequence</button>

</div>

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<div id="DNA Sequence" class="tabcontent">

  <h3>DNA Sequence</h3>

</div>

​

<div id="Amino Acid Sequence" class="tabcontent">

  <h3>Amino Acid Sequence</h3>

</div>

​