<!DOCTYPE html>
<p>There should be a blue square below. To the right of the square there should be two blue vertical
    lines, with the same height as the square.</p>
<div style="float:left; width:315px; height:315px; background:blue;"></div>
<div style="float:left; margin-left:100px; width:5px; height:315px; background:blue;"></div>
<div style="float:left; margin-left:100px; width:5px; height:315px; background:blue;"></div>