A) did you clear browser cache after adding the css.
B) is your mystyles.css in the right theme folder? If you use more than one theme on a site it must be in each of them.
C) if neither A) nor B) help, which site / url is it?
A: as noted, both caches were cleared
B: It’s in Colors
C: this is my personal site so will copy over the mystyles.css to my ROyals tomorrow night (my night) where you have admin access but alterfamily.woodengems.com has Places List for visitors