Padding three
Padding right three
Padding bottom three
Padding horizontal three
Padding vertical three
<div class="p4">Padding three</div>
<div class="pr4">Padding right three</div>
<div class="pb4">Padding bottom three</div>
<div class="ph4">Padding horizontal three</div>
<div class="pv4">Padding vertical three</div>spacing.css, line 401