'How can I add a margin with color in bootstrap 4?

I am trying to add a margin with color in bootstrap 4.

enter image description here



Solution 1:[1]

Margins don“t have color, these img look like child inside some html tag and the parent have the background color.

Just put a body background-color style, place a div with other color.

Solution 2:[2]

I dont know if i could understand but maybe that's what you want to achieve:

pick the div you want the margin with color and add this css code:

example

<div class="container" style="border:100px solid #c51a1a;">  
</div>

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Voxxii
Solution 2 Pedro Barreto