Custom CSS Class dont work in quick Css

Hi
I want to change the icon box background color on the front site: http://www.psykosyntese.no/wp
I have Turn on the Custom CSS Class in functions.php:
– with this line I copy: add_theme_support(‘avia_template_builder_custom_css’);
– from this page: http://kriesi.at/documentation/enfold/turn-on-custom-css-field-for-all-alb-elements/
– and paste it directly under the ?php. in functions.php

I have made a Custom CSS Class: tik-boks-farve in the icon box menu, and put this code in the quick css:
.tik-boks-farve .iconbox_content {
background-color: rgba(87,113,49)!important;
Still, the background color in the box are transperant, and not the color i define in the CSS style…

I have also tried this code in quick css:
.tik-boks-farve .iconbox_content {
background: rgba(87,113,49)!important;
wich dont work eather

What have i do wrong? I can see the line: add_theme_su….. also is showing as the last line in the window in functions.php…

Please help, it has work before, without Custom CSS Class and only a definition in quick css. Suddenly it dont work any more, then i turn on the Custom CSS Class but also that seems to make no differents :-/

Best regards!!
Tina62