Can someone tell what is the problem with misaligned output on really wide screen?

I run the C# code through online compiler on:
https://dotnetfiddle.net/15ih29

Below is different result I got:

On my normal laptop screen:


On his wide screen:


My cyberpal monitor:


Is this that particular website issue, or incompatible with wide screen?

This post has been edited by FlierMate: Nov 24 2022, 07:16 PM

It is not my coding problem, as it is running correctly on Visual Studio (local IDE):

heres what i got



my guess is has something to do with the font used

because once i change the font...it bcomes this

yep, if display ascii out put, must use monospaced font, any other types of fonts will cause display distortion

FlierMate

Yes, I read the reply from 1024kbps and your feedback, sounds reasonable.

But how does one change the font of the output textbox in web browser? It ain't a document editor where users can change font easily.

the person who have the compiled code with distorted ascii output must have changed the browser default font.
have to reset the browser settings.

you can ask the person to inspect his/her browser by right-click > inspect >
then it will jump into this section:
<div id="output" class="output">

check the #output font-family, default is monospaced.

Thanks, he replied already, but I think not the font problem, his is also "monospace".

I changed the Windows display language to PRC, the ascii output breaks, the distortion is same as the image you posted
works fine with Jpn language though.

Thank you for helping to test, so the problem is with the Chinese Windows. I am glad now I know the answer.