Describe the bug:
The deprecated align attribute on <img> isn't supported. Note that according to https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/img#align the effect of this attribute maps directly to extant CSS attributes.

To Reproduce:
Go to http://www.javaonthebrain.com/links.html

The mascot uses align=right but is on the left in Servo.

Above is Firefox.

Platform:
Windows 10, latest Servo.