Widely available
This feature is well established and works across many devices and browser versions.
Chrome
Edge
Firefox
Safari
bs-o-nonebox-shadow: none;bs-o-xsbox-shadow: 0 1px 2px #0000000d;bs-o-smbox-shadow: 0 1px 3px #0000001a, 0 1px 2px -1px #0000001a;bs-o-mdbox-shadow: 0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;bs-o-lgbox-shadow: 0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;bs-o-xlbox-shadow: 0 20px 25px -5px #0000001a, 0 8px 10px -6px #0000001a;bs-o-xxlbox-shadow: 0 25px 50px -12px #00000040;bs-o-3xlbox-shadow: 0 35px 60px -15px #0000004d;bs-i-nonebox-shadow: none;bs-i-xsbox-shadow: inset 0 1px 2px #0000000d;bs-i-smbox-shadow: inset 0 2px 4px #0000000f;bs-i-mdbox-shadow: inset 0 2px 4px #0000001a;bs-i-lgbox-shadow: inset 0 4px 6px #0000001a;bs-i-xlbox-shadow: inset 0 6px 10px #0000001f;bs-i-xxlbox-shadow: inset 0 8px 16px #00000026;bs-i-3xlbox-shadow: inset 0 12px 24px #00000033;Media Queries
Prefix a class with a breakpoint to apply it from that width up.
Outset
Inset
Pseudo Classes
Prefix a class with a state to apply it only while that state matches.