Why margin top not working?

Question

1div contain 4 paragraph. 1st two paragraph on the top by using float property. Then I try to add margin top to 3rd paragraph but failed 😪

https://code.sololearn.com/WDOy9YId76ZU/?ref=app

Answer 1

Your margin is collapsing due to the display type. Goggle CSS margin collapse for more info.
Try adding;
display: inline-block;
to your CSS three class definition before your margin settings

Answer 2

A lot of thanks for help