Try clearing your browser's cache and refreshing the page. Most of the time that this happens, it's a network issue and resolves itself in a little bit. Clearing the cache can help remove any stale portions of old code and make sure it's getting the latest version including any updates.
Hi siddharth.shah@marwadieducation.edu.in, James made an excellent point.
Here's some information about how to clear your cache:
Clear your web browser's cache, cookies, and history
Sing out if you need a hand.
siddharth.shah@marwadieducation.edu.in
We have seen this happening recently with some students that were using Kaspersky antivirus.
For some weird reason it was blocking some HTTPS URLs, including tha Canvas core CSS files.
siddharth.shah@marwadieducation.edu.in, you'll find a range of troubleshooting tips for this issue in What to do when Canvas looks 'big' or 'zoomed in'!
Hello Siddharth, I had a similar issue when I was a newbie to Canvas. But do follow the link suggested by bobby.pedersen@education.tas.gov.au works!