Dozerfleet rating system/How to create TVPG-style ratings

Imitation TVCPG
Also used on this site for comparison's sake is an imitation of the TV Content Parental Guidelines system.

The source code for that template here looks like this:

To render the CSS
table.tvpg { font-size:200%; border-radius:0!important; font-weight:bold; }

.tvpg-width-control { width:32px }

.tvpg-wob { background:black; color:white; border:2px solid white; }