Reply To: :before Pseudo Class shows before page load

[Paulie_D]

Load that CSS after the page renders…?

https://stackoverflow.com/questions/21112220/how-to-load-stylesheets-after-loading-and-displaying-page-without-any-style

and

https://stackoverflow.com/questions/19374843/css-delivery-optimization-how-to-defer-css-loading

Should get you started.