Borders
Heading 1
border style
.bd-solid
.bd-dotted
.bd-dashed
.bd-double4
border width
.bd-solid
.bd-solid2
.bd-solid3
.bd-solid4
.bd-solid5
.bd-solid6
.bd-solid7
border color
.bd-solid-shade
.bd-solid-shade1
.bd-solid-shade2
.bd-solid-shade3
border side
bd-solid-shade
bd-t-solid-shade
bd-r-solid-shade
bd-b-solid-shade
bd-l-solid-shade