<div class="bars-container">
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    <div data-percent="70" class="bar"></div>
    <div data-percent="60" class="bar"></div>
    <div data-percent="50" class="bar"></div>
    <div data-percent="40" class="bar"></div>
    <div data-percent="30" class="bar"></div>
    <div data-percent="20" class="bar"></div>
    <div data-percent="10" class="bar"></div>
  </article>
</div>