og
I like to highlight words on pages with special color(boxes). E.g. when a page contains "BU/BN" as as word (yes, i know that slash is usally a word delimiter), so having whitespace surrounding it, it should be rendered with a colorbox beneath it. The box should have a blue tint and there should be a thick brown line in the middle.
BU/BN [==]
I know how to do such things in CSS, but what is the right place to configure such translations?