I posted over here about my problem with Generico hijacking styling: https://moodle.org/mod/forum/discuss.php?d=261896#p1252466 See below
The problem
This fix seems to work:
.ui-widget-content a:link { color: #1d8ac3 !important; }
.ui-widget-content a:visited{ color: #c22323 !important; }
Link is now styled as below. But I am not at all sure why the tabs also become styled a little differently, but I prefer the new look.
Onwards.
-Derek