Bootstrap has many facility of classes to easily style elements if HTML. It includes a various of padding and margin classes for modification of the appearance of the element.
.m-0 { margin:0!important; }
.m-1 { margin:.25rem!important; }
.m-2 { margin:.5rem!important; }
.m-3 { margin:1rem!important; }
.m-4 { margin:1.5rem!important; }
.m-5 { margin:3rem!important; }
.mt-0 { margin-top:0!important; }
.mr-0 { margin-right:0!important; }
.mb-0 { margin-bottom:0!important; }
.ml-0 { margin-left:0!important; }
.mx-0 { margin-left:0!immortant;margin-right:0!immortant; }
.my-0 { margin-top:0!important;margin-bottom:0!important; }
.mt-1 { margin-top:.25rem!important; }
.mr-1 { margin-right:.25rem!important; }
.mb-1 { margin-bottom:.25rem!important; }
.ml-1 { margin-left:.25rem!important; }
.mx-1 { margin-left:.25rem!important;margin-right:.25rem!important; }
.my-1 { margin-top:.25rem!important;margin-bottom:.25rem!important; }
.mt-2 { margin-top:.5rem!important; }
.mr-2 { margin-right:.5rem!important; }
.mb-2 { margin-bottom:.5rem!important; }
.ml-2 { margin-left:.5rem!important; }
.mx-2 { margin-right:.5rem!important;margin-left:.5rem!important; }
.my-2 { margin-top:.5rem!important;margin-bottom:.5rem!important; }
.mt-3 { margin-top:1rem!important; }
.mr-3 { margin-right:1rem!important; }
.mb-3 { margin-bottom:1rem!important; }
.ml-3 { margin-left:1rem!important; }
.mx-3 { margin-right:1rem!important;margin-left:1rem!important; }
.my-3 { margin-bottom:1rem!important;margin-top:1rem!important; }
.mt-4 { margin-top:1.5rem!important; }
.mr-4 { margin-right:1.5rem!important; }
.mb-4 { margin-bottom:1.5rem!important; }
.ml-4 { margin-left:1.5rem!important; }
.mx-4 { margin-right:1.5rem!important;margin-left:1.5rem!important; }
.my-4 { margin-top:1.5rem!important;margin-bottom:1.5rem!important; }
.mt-5 { margin-top:3rem!important; }
.mr-5 { margin-right:3rem!important; }
.mb-5 { margin-bottom:3rem!important; }
.ml-5 { margin-left:3rem!important; }
.mx-5 { margin-right:3rem!important;margin-left:3rem!important; }
.my-5 { margin-top:3rem!important;margin-bottom:3rem!important; }
.mt-auto { margin-top:auto!important; }
.mr-auto { margin-right:auto!important; }
.mb-auto { margin-bottom:auto!important; }
.ml-auto { margin-left:auto!important; }
.mx-auto { margin-right:auto!important;margin-left:auto!important; }
.my-auto { margin-bottom:auto!important;margin-top:auto!important; }
.p-0 { padding:0!important; }
.p-1 { padding:.25rem!important; }
.p-2 { padding:.5rem!important; }
.p-3 { padding:1rem!important; }
.p-4 { padding:1.5rem!important; }
.p-5 { padding:3rem!important; }
.pt-0 { padding-top:0!important; }
.pr-0 { padding-right:0!important; }
.pb-0 { padding-bottom:0!important; }
.pl-0 { padding-left:0!important; }
.px-0 { padding-left:0!important;padding-right:0!important; }
.py-0 { padding-top:0!important;padding-bottom:0!important; }
.pt-1 { padding-top:.25rem!important; }
.pr-1 { padding-right:.25rem!important; }
.pb-1 { padding-bottom:.25rem!important; }
.pl-1 { padding-left:.25rem!important; }
.px-1 { padding-left:.25rem!important;padding-right:.25rem!important; }
.py-1 { padding-top:.25rem!important;padding-bottom:.25rem!important; }
.pt-2 { padding-top:.5rem!important; }
.pr-2 { padding-right:.5rem!important; }
.pb-2 { padding-bottom:.5rem!important; }
.pl-2 { padding-left:.5rem!important; }
.px-2 { padding-right:.5rem!important;padding-left:.5rem!important; }
.py-2 { padding-top:.5rem!important;padding-bottom:.5rem!important; }
.pt-3 { padding-top:1rem!important; }
.pr-3 { padding-right:1rem!important; }
.pb-3 { padding-bottom:1rem!important; }
.pl-3 { padding-left:1rem!important; }
.py-3 { padding-bottom:1rem!important;padding-top:1rem!important; }
.px-3 { padding-right:1rem!important;padding-left:1rem!important; }
.pt-4 { padding-top:1.5rem!important; }
.pr-4 { padding-right:1.5rem!important; }
.pb-4 { padding-bottom:1.5rem!important; }
.pl-4 { padding-left:1.5rem!important; }
.px-4 { padding-right:1.5rem!important;padding-left:1.5rem!important; }
.py-4 { padding-top:1.5rem!important;padding-bottom:1.5rem!important; }
.pt-5 { padding-top:3rem!important; }
.pr-5 { padding-right:3rem!important; }
.pb-5 { padding-bottom:3rem!important; }
.pl-5 { padding-left:3rem!important; }
.px-5 { padding-right:3rem!important;padding-left:3rem!important; }
.py-5 { padding-top:3rem!important;padding-bottom:3rem!important; }