Yup, you're not the only one; I've noticed the same throughout the web at the fanciest web sites. I suspect it's caused by everything being placed inside layers

Yup, you're not the only one; I've noticed the same throughout the web at the fanciest web sites. I suspect it's caused by everything being placed inside layers of nested <div>s styled with CSS. It's particularly aggravating in mobile browsers, which have worse CSS support. The worse offenders are whole rectangular paragraphs that behave as a single button, and text input fields that don't get recognized when I click on them on my android browser (Coursera, I'm looking at you).