<div class="left-panel">
    <ul class="nav-col">
      <li class="nav-col"><a href="#home">Examples</a></li>
      <li class="nav-col"><a href="#news">My Problems</a></li>
      <li class="nav-col"><a href="#contact">Shared With Me</a></li>
    </ul>
</div>

<div class="mid-content">
    <div class="problem-row">
        <div class="problem-description">
            Problem
        </div>
    </div>
</div>