Sometimes the default styling for the special achievements page does not work well with a custom wiki skin. The following css can be used (or adapated) to work better:
#p-achievement-list { background: none repeat scroll 0 0 rgba(255,255,255,0.2); } .achievement_category { background: none repeat scroll 0 0 transparent; } .achievement_category_select { background: none repeat scroll 0 0 rgba(255,255,255,0.1); } .achievement_category_select[data-selected="true"] { background: none repeat scroll 0 0 rgba(255,255,255,0.3); } .p-achievement-row { background: none repeat scroll 0 0 rgba(255,255,255,0.1); color: #000000; }