codepen.io doesn’t work correctly , I have tried some codes on it and it doesn’t give me the right result as I have tried it on Brackets code editor and it had worked correctly as it should be !!!.
does anyone have also the same problem !?
Hi,
I haven’t noticed any such issue with Codepen.
Which is the code that you tried and gave you different result?
this is the code ! you would try it on codepen and on any another code editor even notepad and see the difference 
It’s because codepen.io and bootstrap v.4 don’t work well together. Paste this into your css resources:
https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css