KSS Style Guide

Examples
Default styling
A div
.bwa-3
Sets all borders to 3
A div
.bwx-3
Sets left and right borders to 3
A div
.bwy-3
Sets top and bottom borders to 3
A div
.bwt-3
Sets top border to 3
A div
.bwr-3
Sets right border to 3
A div
.bwb-3
Sets bottom border to 3
A div
.bwl-3
Sets left border to 3
A div
Markup
<div class="[modifier class]">A div</div>
Source: dist/full/full.css, line 196