<!DOCTYPE html>
<p>There should be five rectangles with identical sizes below. The first, third and fifth
one should be blue with nothing inside. The second and fourth one should be yellow with some
dots inside.</p>
<div style="line-height:100px; background:blue;">
    &nbsp;
    <div style="background:yellow;">..........</div>
    &nbsp;
    <div style="background:yellow;">..........</div>
    &nbsp;
</div>