HTML/CSS assessment 11/12 for the 600px requirement

Hello, I know this is a common topic.*** has a ‘form’ element that is 600px when the window is wider than 600px**
Before turning in I checked that the form line was there and that on a browser the table did not stretch across the screen in full screen. Im unsure of what is wrong and Id like to not waste more attempts on blind luck changing stuff. hoping for some guidance on what is wrong. thanks in advance!

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What I’ve tried

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