Colorful borders
Use color profiles to the following border colors
,border-primary, .border-secondary,
.border-success, .border-danger,
.border-warning, .border-info,
.border-light, .border-dark,
.border-white, .border-transparent,
.border-faded
Add Borders
Add border using
.border, .border-top,
.border-end, .border-end,
.border-bottom, .border-start
Border Opacity
Add border using
.border-opacity-75,
.border-opacity-50,
.border-opacity-25, .border-opacity-10.
Border Thickness
Border thickness using
border-1, border-2,
border-3, border-4, border-5.
Rounded example
Round edges or control each corner using
.rounded,
rounded-top, rounded-end,
rounded-bottom, rounded-start,
rounded-circle, rounded-0,
.rounded-plus, .rounded-{sm,lg},
.rounded-pill,
border-{top,bottom}-{left,right}-radius-0
Control rounded depth using
rounded-1,
rounded-2, rounded-3, rounded-4,
rounded-5
Mix and match rounded corners using
rounded-bottom-1,
rounded-start-2,
rounded-end-circle, rounded-start-pill,
rounded-5 rounded-top-0
Remove borders
Subtract borders with
border-0, border-top-0,
border-end-0, border-bottom-0,
border-start-0, .border-transparent