I search the icons at 'css.gg' using Google's search. For example, I search for 'button icon cas.gg'. But after a while Google puts up a check to see if you are a human and not a bot. There seem to be more icons at 'css.gg' than those listed in the categories. Sometimes I have to align the icons by adding a 'top' or 'left' property to the parent element which is positioned 'relative'. Sometimes I have to add a 'top:0' or 'left:0' property to the ':before' or ':after' elements when I add the icons to a real webpage. There is no 'cog' or 'gear' icon as this is difficult to do with the 3 elements used: the parent, the ':before' and the ':after'. I found a cog icon in an answer on 'stackoverflow.com'. I converted the icons to 'em' units but a few icons do not scale completely perfectly. It is probably best to use inline SVG's, but I am learing a lot about...