Using WordPress Plugins and using a lot of CSS to customize buttons etc.
Usually I'd flow like this;
.a { visibility: hidden; }
.a:after {visibility: visible; display: block; content: 'yyy'; etc...}
And somehow i accidentlally found out about ::after.
Whats the difference between :after and ::after regarding performance and page speed?
Thought about re-writing everything to ::after, because less code = more speed?