Because none of my pages will incorporate more than two pieces of "block content" (apart from the text), I decided to offset the first block to the right of the page, and leave the second one at the left margin. The feature index table is one of the physically biggest, I think, and so all the other pages will have the text wrap around them nicely (or not need it at all). I've liked using the dark green wrap with a white background screen; it looks clean, as well as being accessible. The orange background on the nav menu buttons was chosen for the same reason.

Name	Email address	Phone number	Library Card	Overdue notification	Expected result	Actual observed result
Zoe Zane	zz@gmail.com	6472225412	12345678	Yes/No	Accepted; summary displayed	Pass
Zo	zz@gmail.com	6472225412	12345678	Yes/No	"Name must be at least 3 characters"	Pass
Zoe Zane	z@g.c	6472225412	12345678	Yes/No	"Email must be at least 6 characters"	Pass
Zoe Zane	zz@gmail.com	2225412	12345678	Yes/No	"Phone number must be exactly 10 digits"	Pass
Zoe Zane	zz@gmail.com	6472225412	1234	Yes/No	"Library card must be exactly 8 digits"	Pass
Zoe Zane	zz@gmail.com	6472225412	12345678	blank	"Please choose Yes or No"	Pass