Oh no, H3 before H2
Yikes! H2 before H1
Ok so here is a link that actually goes somewhere!
Now this link doesn't actually go anywhere. Oh no! This is a link attribute that also has no destination. Not even an href.
Header H1 all the way down here
Missing alt
H2 After the H1 but still incorrect because there is an H3 above it
This H4 is OK. Image below has alt attribute, even though its empty.
Empty but existing alt. Has size attributes.
Filled alt, no size attributes
Here's a link out that may be insecure.