browser-stuff.md

What does last 3 versions mean? https://browserl.ist/?q=Last+3+versions

css

position:sticky polyfills

• https://github.com/wilddeer/stickyfill -
• https://github.com/dollarshaveclub/stickybits

scroll margin/padding https://css-tricks.com/fixed-headers-on-page-links-and-overlapping-content-oh-my/