WebKit handles 100vh in a way that differs from other browsers, which can complicate some layouts. But using -webkit-fill-available might be a good enough alternative to get by.
This guide is about the HTML syntax for responsive images (and a little bit of CSS for good measure). We will go over srcset and a whole bunch of things to consider to help you get the best performance and design control from your images.
"I thought this was going to be a short-ish note on fixed positioning and jank, but as with almost everything I write, it grew into a long-ish post about containing blocks, rendering and scrollperformance."