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Re: Testing 1.4.4 Resize and 1.4.10 Reflow

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From: Mark Magennis
Date: Apr 19, 2023 3:42AM

For SC 1.4.4 Resize there is no specified 'starting' viewport size so you have to test at what is 'reasonable'. I like to test down to 640px width because 200% zoom makes this equivalent to the 320px width required by 1.4.10 and I think it's reasonable to expect pages to work down to that level.

I say "down to 640px", not "at 640px" because in practise, issues may appear and disappear as you change the width or zoom, so you may have issues at, say 1020px and 200% zoom that don't appear at 640px and 200% zoom. Similarly, you might have issues that appear when you zoom to 150% and then disappear when you get to 200%. So you ideally want to test the whole range. I like to grab the right side of the window with the mouse and gradually shrink it to see if anything nasty happens on the way, then investigate further if I see anything.

Also bear in mind that if you have a responsive design which changes the layout and/or content at specific breakpoints, you need to text each different layout/content. So make sure you test just below each breakpoint.