Borders on all sides
b0
b1
b2
b3
b4
b5
b6
b7
b8
Borders on top
bt0
bt1
bt2
bt3
bt4
bt5
bt6
bt7
bt8
Borders on right
br0
br1
br2
br3
br4
br5
br6
br7
br8
Borders on bottom
bb0
bb1
bb2
bb3
bb4
bb5
bb6
bb7
bb8
Borders on left
bl0
bl1
bl2
bl3
bl4
bl5
bl6
bl7
bl8
Vertical Borders (Y Axis))
by0
by1
by2
by3
by4
by5
by6
by7
by8
Horizontal Borders (X Axis))
bx0
bx1
bx2
bx3
bx4
bx5
bx6
bx7
bx8