How to repair thank you
Welcome to Meta @zengyunsi 
I can’t reproduce the issue you mentioned. I see this
I think what you’re seeing is related to this.
The fallback --calculated-height only kicks in if you’re on a browser that doesn’t support the aspect-ratio CSS property. All the browsers officially supported by Discourse support that property
CSS property: aspect-ratio | Can I use... Support tables for HTML5, CSS3, etc
Can you please share what browser you’re seeing this on?
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Hello, Johani，I have tried several Chinese browsers in China, and I have this problem. It is normal to test Google and edge. Thank you very much!