KSS Style Guide

Examples
Default styling
A div
.bwa-5
Sets all borders to 5
A div
.bwx-5
Sets left and right borders to 5
A div
.bwy-5
Sets top and bottom borders to 5
A div
.bwt-5
Sets top border to 5
A div
.bwr-5
Sets right border to 5
A div
.bwb-5
Sets bottom border to 5
A div
.bwl-5
Sets left border to 5
A div
Markup
<div class="[modifier class]">A div</div>
Source: dist/full/full.css, line 288