Why testing text-only resizing?

Hi,
I'm a beginner in the world of accessibility, and even if I know HTML and CSS, I'm not a developer. I'm working on the content of our website (university library). https://bib.umontreal.ca/

I did the Introduction to Web Accessibility course on edX. And trying do to a report to my superiors about "Easy checks": https://www.w3.org/WAI/test-evaluate/preliminary/

We have a responsive website. So, when someone zoom in the browser, everything is bigger. At 200%, the look change to something that looks like a mobile view. So everything is fine (maybe 2-3 little things).... But in the Easy checks, it says a text-only zoom. Our site is not as good as in browser zoom. The items in the menu are not completely visible, text overlap, etc.

I'm not sure to understand why we want to check for text-only? I will have to explain it to my superiors why it is important, so I would like to know. :)

I imagine that our solution is in the techniques for text containers to resize? I'm not a programmer, but I would like to point to the IT team how they can correct.

Thanks,
Laurie-Anne

Ps: I hope my message is understandable. I'm French so there might have some mistakes. :)


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Laurie-Anne Gignac
Bibliothécaire - édimestre
Direction des bibliothèques, Université de Montréal
Teams<https://teams.microsoft.com/l/chat/0/0?users=%3claurie-anne.gignac@umontreal.ca%3e>

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