Where Is My Tribe?

I am building a wordpress-based website. It's the year 2022. I am using some fancy WYSIWYG template editor. It's not bad actually, once you get a hang of it. And yet, Firefox, Chrome, Safari, and iOS all display it differently. What. The. Actualy. Fuck.

It's 2022.

I remember doing this years ago. Zen of CSS, Bulletproof Web Design era years ago. When Meyers and Zeldman were twt-ing out tips and tricks, years ago (though they're both still going strong of course!). Why is web design still as terrible now as it was then?!