Source: dist/css/acc_uc.css, line 11283
8.2.1.1 Color:Black with Alphas
Border black has attached alpha modifiers to allow for greater flexibility
Example s
br_black
border black with alpha of 100%
br_black border
br_black-0
border black with alpha of 2%
br_black-0 border
br_black-1
border black with alpha of 10%
br_black-1 border
br_black-2
border black with alpha of 20%
br_black-2 border
br_black-3
border black with alpha of 30%
br_black-3 border
br_black-4
border black with alpha of 40%
br_black-4 border
br_black-5
border black with alpha of 50%
br_black-5 border
br_black-6
border black with alpha of 60%
br_black-6 border
br_black-7
border black with alpha of 70%
br_black-7 border
br_black-8
border black with alpha of 80%
br_black-8 border
br_black-9
border black with alpha of 90%
br_black-9 border
<div class="[modifier class] p_3 br_solid br_5 bg_primary-1 white">[modifier class] border</div>