To change the size, increase or decrease the number for width.
<p><img src="https://i.imgflip.com/4mcg4c.jpg" width="171" /></p>
<p><img src="https://i.imgflip.com/4mcg4c.jpg" width="106"/>
<p><img src="https://i.imgflip.com/4mcg4c.jpg" width="131" /></p>
This is just a bonus gif I copied in by accident. Someone two threads back titled it "Hold The Line, Patriots!":
<p><img src="https://i.imgflip.com/4mcg4c.jpg" width="171" /></p>