border-x
.bx1px
border-x
.bx2px
border-x
.bx05
border-x
.bx1
border-y
.by1px
border-y
.by2px
border-y
.by05
border-y
.by1
border-top
.bt1px
border-top
.bt2px
border-top
.bt05
border-top
.bt1
border-right
.br1px
border-right
.br2px
border-right
.br05
border-right
.br1
border-bottom
.bb1px
border-bottom
.bb2px
border-bottom
.bb05
border-bottom
.bb1
border-left
.bl1px
border-left
.bl2px
border-left
.bl05
border-left
.bl1