av-subheading modifications

hi again! this is the 4th website i’m building with you guys, and enjoying every minute. thanks!

this time i chose the flat look, and i have one problem:

on the subheading, there seems to be some kind of text effect that i need to remove. i want it to be fully white, no transparency, no inner shadow to the text, nothing.

i tried this code:
.av-subheading {
color: white; text-shadow: none;
}

but it’s not working. can you please help?