Bootstrap class="mb-3"

mt- = margin-top
mb- = margin-bottom
ml- = margin-left
mr- = margin-right
my- = it sets margin-left and margin-right at the same time on y axes
mX- = it sets margin-bottom and margin-top at the same time on X axes

Source: stackoverflow.com

Similar codes

2 votes173 views2 answers
No gutter in bootstrap css for row
CSS Bootstrap
1 vote161 views2 answers
Change nav background color on scroll css without bootstrap
CSS Bootstrap
0 vote169 views2 answers
React-bootstrap sidebar menu
Javascript Bootstrap
0 vote128 views1 answer
Bootstrap accessibility
CSS Bootstrap
12 votes165 views6 answers
Bootstrap modal
Javascript Bootstrap
0 vote164 views1 answer
Bootstrap 4 form validator with jquery
Javascript Bootstrap
0 vote158 views1 answer
Bootstrap searchable pagination table example jquery
Javascript Bootstrap
2 votes177 views1 answer
Large input box bootstrap 4
CSS Bootstrap
0 vote96 views1 answer
Import button react-bootstrap
Javascript Bootstrap
222 votes315 views6 answers
Bootstrap CSS CDN
CSS Bootstrap