I got this template from github. It's a little old. Bootstrap 3 was used. I want to convert it to Bootstrap 5. And here's the result after I put Bootstrap 5 CDN instead of Bootstrap 3 CDN. What's the issue? How to fix it? Here's the code.
CodePudding user response：
Try to delete your cache on your browser.
CodePudding user response：
The migration from Bootstrap 3 to Bootstrap 5 is a huge change, since Bootstrap 3 has been around since 2013.
I do not think there is an easy way to convert Bootstrap 3 to Bootstrap 5, due to many major changes and additions.
However, I would suggest you to go through the migration guides for more enlightenment.
I have found a tool online to convert BS3 to BS4 however I don't think there's one to convert to 5.
BS3 to BS4 converter tool: https://www.prepbootstrap.com/converter
Official bootstrap documentation for migration: