Widely available
This feature is well established and works across many devices and browser versions.
Chrome
Edge
Firefox
Safari
br-0border-radius: 0;br-9999border-radius: 9999px;br-xsborder-radius: 0.125rem;br-smborder-radius: 0.25rem;br-mdborder-radius: 0.375rem;br-lgborder-radius: 0.5rem;br-xlborder-radius: 0.75rem;br-xxlborder-radius: 1rem;br-3xlborder-radius: 1.5rem;br-100%border-radius: 100%;br-50%border-radius: 50%;br-pxborder-radius: 1px;Border Block End Radius
bber-0border-end-end-radius: 0;border-end-start-radius: 0;bber-9999border-end-end-radius: 9999px;border-end-start-radius: 9999px;bber-xsborder-end-end-radius: 0.125rem;border-end-start-radius: 0.125rem;bber-smborder-end-end-radius: 0.25rem;border-end-start-radius: 0.25rem;bber-mdborder-end-end-radius: 0.375rem;border-end-start-radius: 0.375rem;bber-lgborder-end-end-radius: 0.5rem;border-end-start-radius: 0.5rem;bber-xlborder-end-end-radius: 0.75rem;border-end-start-radius: 0.75rem;bber-xxlborder-end-end-radius: 1rem;border-end-start-radius: 1rem;bber-3xlborder-end-end-radius: 1.5rem;border-end-start-radius: 1.5rem;bber-100%border-end-end-radius: 100%;border-end-start-radius: 100%;bber-50%border-end-end-radius: 50%;border-end-start-radius: 50%;bber-pxborder-end-end-radius: 1px;border-end-start-radius: 1px;Border Block Start Radius
bbsr-0border-start-start-radius: 0;border-start-end-radius: 0;bbsr-9999border-start-start-radius: 9999px;border-start-end-radius: 9999px;bbsr-xsborder-start-start-radius: 0.125rem;border-start-end-radius: 0.125rem;bbsr-smborder-start-start-radius: 0.25rem;border-start-end-radius: 0.25rem;bbsr-mdborder-start-start-radius: 0.375rem;border-start-end-radius: 0.375rem;bbsr-lgborder-start-start-radius: 0.5rem;border-start-end-radius: 0.5rem;bbsr-xlborder-start-start-radius: 0.75rem;border-start-end-radius: 0.75rem;bbsr-xxlborder-start-start-radius: 1rem;border-start-end-radius: 1rem;bbsr-3xlborder-start-start-radius: 1.5rem;border-start-end-radius: 1.5rem;bbsr-100%border-start-start-radius: 100%;border-start-end-radius: 100%;bbsr-50%border-start-start-radius: 50%;border-start-end-radius: 50%;bbsr-pxborder-start-start-radius: 1px;border-start-end-radius: 1px;Border Bottom Left Radius
bblr-0border-bottom-left-radius: 0;bblr-9999border-bottom-left-radius: 9999px;bblr-xsborder-bottom-left-radius: 0.125rem;bblr-smborder-bottom-left-radius: 0.25rem;bblr-mdborder-bottom-left-radius: 0.375rem;bblr-lgborder-bottom-left-radius: 0.5rem;bblr-xlborder-bottom-left-radius: 0.75rem;bblr-xxlborder-bottom-left-radius: 1rem;bblr-3xlborder-bottom-left-radius: 1.5rem;bblr-100%border-bottom-left-radius: 100%;bblr-50%border-bottom-left-radius: 50%;bblr-pxborder-bottom-left-radius: 1px;Border Bottom Radius
bbr-0border-bottom-right-radius: 0;border-bottom-left-radius: 0;bbr-9999border-bottom-right-radius: 9999px;border-bottom-left-radius: 9999px;bbr-xsborder-bottom-right-radius: 0.125rem;border-bottom-left-radius: 0.125rem;bbr-smborder-bottom-right-radius: 0.25rem;border-bottom-left-radius: 0.25rem;bbr-mdborder-bottom-right-radius: 0.375rem;border-bottom-left-radius: 0.375rem;bbr-lgborder-bottom-right-radius: 0.5rem;border-bottom-left-radius: 0.5rem;bbr-xlborder-bottom-right-radius: 0.75rem;border-bottom-left-radius: 0.75rem;bbr-xxlborder-bottom-right-radius: 1rem;border-bottom-left-radius: 1rem;bbr-3xlborder-bottom-right-radius: 1.5rem;border-bottom-left-radius: 1.5rem;bbr-100%border-bottom-right-radius: 100%;border-bottom-left-radius: 100%;bbr-50%border-bottom-right-radius: 50%;border-bottom-left-radius: 50%;bbr-pxborder-bottom-right-radius: 1px;border-bottom-left-radius: 1px;Border Bottom Right Radius
bbrr-0border-bottom-right-radius: 0;bbrr-9999border-bottom-right-radius: 9999px;bbrr-xsborder-bottom-right-radius: 0.125rem;bbrr-smborder-bottom-right-radius: 0.25rem;bbrr-mdborder-bottom-right-radius: 0.375rem;bbrr-lgborder-bottom-right-radius: 0.5rem;bbrr-xlborder-bottom-right-radius: 0.75rem;bbrr-xxlborder-bottom-right-radius: 1rem;bbrr-3xlborder-bottom-right-radius: 1.5rem;bbrr-100%border-bottom-right-radius: 100%;bbrr-50%border-bottom-right-radius: 50%;bbrr-pxborder-bottom-right-radius: 1px;Border End End Radius
beer-0border-end-end-radius: 0;beer-9999border-end-end-radius: 9999px;beer-xsborder-end-end-radius: 0.125rem;beer-smborder-end-end-radius: 0.25rem;beer-mdborder-end-end-radius: 0.375rem;beer-lgborder-end-end-radius: 0.5rem;beer-xlborder-end-end-radius: 0.75rem;beer-xxlborder-end-end-radius: 1rem;beer-3xlborder-end-end-radius: 1.5rem;beer-100%border-end-end-radius: 100%;beer-50%border-end-end-radius: 50%;beer-pxborder-end-end-radius: 1px;Border End Start Radius
besr-0border-end-start-radius: 0;besr-9999border-end-start-radius: 9999px;besr-xsborder-end-start-radius: 0.125rem;besr-smborder-end-start-radius: 0.25rem;besr-mdborder-end-start-radius: 0.375rem;besr-lgborder-end-start-radius: 0.5rem;besr-xlborder-end-start-radius: 0.75rem;besr-xxlborder-end-start-radius: 1rem;besr-3xlborder-end-start-radius: 1.5rem;besr-100%border-end-start-radius: 100%;besr-50%border-end-start-radius: 50%;besr-pxborder-end-start-radius: 1px;Border Inline End Radius
bier-0border-start-end-radius: 0;border-end-end-radius: 0;bier-9999border-start-end-radius: 9999px;border-end-end-radius: 9999px;bier-xsborder-start-end-radius: 0.125rem;border-end-end-radius: 0.125rem;bier-smborder-start-end-radius: 0.25rem;border-end-end-radius: 0.25rem;bier-mdborder-start-end-radius: 0.375rem;border-end-end-radius: 0.375rem;bier-lgborder-start-end-radius: 0.5rem;border-end-end-radius: 0.5rem;bier-xlborder-start-end-radius: 0.75rem;border-end-end-radius: 0.75rem;bier-xxlborder-start-end-radius: 1rem;border-end-end-radius: 1rem;bier-3xlborder-start-end-radius: 1.5rem;border-end-end-radius: 1.5rem;bier-100%border-start-end-radius: 100%;border-end-end-radius: 100%;bier-50%border-start-end-radius: 50%;border-end-end-radius: 50%;bier-pxborder-start-end-radius: 1px;border-end-end-radius: 1px;Border Inline Start Radius
bisr-0border-start-start-radius: 0;border-end-start-radius: 0;bisr-9999border-start-start-radius: 9999px;border-end-start-radius: 9999px;bisr-xsborder-start-start-radius: 0.125rem;border-end-start-radius: 0.125rem;bisr-smborder-start-start-radius: 0.25rem;border-end-start-radius: 0.25rem;bisr-mdborder-start-start-radius: 0.375rem;border-end-start-radius: 0.375rem;bisr-lgborder-start-start-radius: 0.5rem;border-end-start-radius: 0.5rem;bisr-xlborder-start-start-radius: 0.75rem;border-end-start-radius: 0.75rem;bisr-xxlborder-start-start-radius: 1rem;border-end-start-radius: 1rem;bisr-3xlborder-start-start-radius: 1.5rem;border-end-start-radius: 1.5rem;bisr-100%border-start-start-radius: 100%;border-end-start-radius: 100%;bisr-50%border-start-start-radius: 50%;border-end-start-radius: 50%;bisr-pxborder-start-start-radius: 1px;border-end-start-radius: 1px;Border Left Radius
blr-0border-top-left-radius: 0;border-bottom-left-radius: 0;blr-9999border-top-left-radius: 9999px;border-bottom-left-radius: 9999px;blr-xsborder-top-left-radius: 0.125rem;border-bottom-left-radius: 0.125rem;blr-smborder-top-left-radius: 0.25rem;border-bottom-left-radius: 0.25rem;blr-mdborder-top-left-radius: 0.375rem;border-bottom-left-radius: 0.375rem;blr-lgborder-top-left-radius: 0.5rem;border-bottom-left-radius: 0.5rem;blr-xlborder-top-left-radius: 0.75rem;border-bottom-left-radius: 0.75rem;blr-xxlborder-top-left-radius: 1rem;border-bottom-left-radius: 1rem;blr-3xlborder-top-left-radius: 1.5rem;border-bottom-left-radius: 1.5rem;blr-100%border-top-left-radius: 100%;border-bottom-left-radius: 100%;blr-50%border-top-left-radius: 50%;border-bottom-left-radius: 50%;blr-pxborder-top-left-radius: 1px;border-bottom-left-radius: 1px;Border Right Radius
brr-0border-top-right-radius: 0;border-bottom-right-radius: 0;brr-9999border-top-right-radius: 9999px;border-bottom-right-radius: 9999px;brr-xsborder-top-right-radius: 0.125rem;border-bottom-right-radius: 0.125rem;brr-smborder-top-right-radius: 0.25rem;border-bottom-right-radius: 0.25rem;brr-mdborder-top-right-radius: 0.375rem;border-bottom-right-radius: 0.375rem;brr-lgborder-top-right-radius: 0.5rem;border-bottom-right-radius: 0.5rem;brr-xlborder-top-right-radius: 0.75rem;border-bottom-right-radius: 0.75rem;brr-xxlborder-top-right-radius: 1rem;border-bottom-right-radius: 1rem;brr-3xlborder-top-right-radius: 1.5rem;border-bottom-right-radius: 1.5rem;brr-100%border-top-right-radius: 100%;border-bottom-right-radius: 100%;brr-50%border-top-right-radius: 50%;border-bottom-right-radius: 50%;brr-pxborder-top-right-radius: 1px;border-bottom-right-radius: 1px;Border Start End Radius
bser-0border-start-end-radius: 0;bser-9999border-start-end-radius: 9999px;bser-xsborder-start-end-radius: 0.125rem;bser-smborder-start-end-radius: 0.25rem;bser-mdborder-start-end-radius: 0.375rem;bser-lgborder-start-end-radius: 0.5rem;bser-xlborder-start-end-radius: 0.75rem;bser-xxlborder-start-end-radius: 1rem;bser-3xlborder-start-end-radius: 1.5rem;bser-100%border-start-end-radius: 100%;bser-50%border-start-end-radius: 50%;bser-pxborder-start-end-radius: 1px;Border Start Start Radius
bssr-0border-start-start-radius: 0;bssr-9999border-start-start-radius: 9999px;bssr-xsborder-start-start-radius: 0.125rem;bssr-smborder-start-start-radius: 0.25rem;bssr-mdborder-start-start-radius: 0.375rem;bssr-lgborder-start-start-radius: 0.5rem;bssr-xlborder-start-start-radius: 0.75rem;bssr-xxlborder-start-start-radius: 1rem;bssr-3xlborder-start-start-radius: 1.5rem;bssr-100%border-start-start-radius: 100%;bssr-50%border-start-start-radius: 50%;bssr-pxborder-start-start-radius: 1px;Border Top Left Radius
btlr-0border-top-left-radius: 0;btlr-9999border-top-left-radius: 9999px;btlr-xsborder-top-left-radius: 0.125rem;btlr-smborder-top-left-radius: 0.25rem;btlr-mdborder-top-left-radius: 0.375rem;btlr-lgborder-top-left-radius: 0.5rem;btlr-xlborder-top-left-radius: 0.75rem;btlr-xxlborder-top-left-radius: 1rem;btlr-3xlborder-top-left-radius: 1.5rem;btlr-100%border-top-left-radius: 100%;btlr-50%border-top-left-radius: 50%;btlr-pxborder-top-left-radius: 1px;Border Top Radius
btr-0border-top-left-radius: 0;border-top-right-radius: 0;btr-9999border-top-left-radius: 9999px;border-top-right-radius: 9999px;btr-xsborder-top-left-radius: 0.125rem;border-top-right-radius: 0.125rem;btr-smborder-top-left-radius: 0.25rem;border-top-right-radius: 0.25rem;btr-mdborder-top-left-radius: 0.375rem;border-top-right-radius: 0.375rem;btr-lgborder-top-left-radius: 0.5rem;border-top-right-radius: 0.5rem;btr-xlborder-top-left-radius: 0.75rem;border-top-right-radius: 0.75rem;btr-xxlborder-top-left-radius: 1rem;border-top-right-radius: 1rem;btr-3xlborder-top-left-radius: 1.5rem;border-top-right-radius: 1.5rem;btr-100%border-top-left-radius: 100%;border-top-right-radius: 100%;btr-50%border-top-left-radius: 50%;border-top-right-radius: 50%;btr-pxborder-top-left-radius: 1px;border-top-right-radius: 1px;Border Top Right Radius
btrr-0border-top-right-radius: 0;btrr-9999border-top-right-radius: 9999px;btrr-xsborder-top-right-radius: 0.125rem;btrr-smborder-top-right-radius: 0.25rem;btrr-mdborder-top-right-radius: 0.375rem;btrr-lgborder-top-right-radius: 0.5rem;btrr-xlborder-top-right-radius: 0.75rem;btrr-xxlborder-top-right-radius: 1rem;btrr-3xlborder-top-right-radius: 1.5rem;btrr-100%border-top-right-radius: 100%;btrr-50%border-top-right-radius: 50%;btrr-pxborder-top-right-radius: 1px;Media Queries
Prefix a class with a breakpoint to apply it from that width up.
Pseudo Classes
Prefix a class with a state to apply it only while that state matches.