The difference between this Projects

Could someone pls explain why this Projects got the same Code but are displayed differently? I really don’t understand ist. Both are versions of my very first Portfolio Page.
Displayed correctly: https://codepen.io/Chepalos/pen/NdqOGq
Displayed different: https://codepen.io/Chepalos/pen/YNbZBR

They use a different Bootstrap version.

https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js

you need this in your “incorrect” version

Ok i really checked everything except that :sweat_smile:
Thanks for the help