4 <p>You should see two identical gray squares below</p>
5 <svg width="600px" height="500px" xmlns="http://www.w3.org/2000/svg">
6 <rect x="0" y="0" width="200" height="200" fill="rgba(0, 0, 0, 0.4)"/>
7 <rect x="0" y="250" width="200" height="200" fill="rgba(0, 0, 0, 0.4)"/>