body is 14px in desktop and tablet; 16px in XL desktop
the normal size of an h2 is 20 desktop/tablet, 22 XL desktop
.WikiaBlogListing h2 a {font-size:75% !important; }
so that means that the standard h2 is about 142% (but let’s call it 150%) of body copy
or, to put it another way, if you wanted to bring the H2 back a bit, you could instead bring it to 18px — and then let the chips fall where they may in XL
but you can see why it’s immediately better to use percentages for something that’s calculated by wikia css anyway. that way you have the same relationship between header and body whether you’re in XL or not.