normalize.css (which you should eventually prefer over this) with some personal and slightly more opinionated adaptions.

npm i ronalize.css

• Default to box-sizing for border-box
• Usage of System Font Stack
• Base font size of 16px (in order to use rem)
• Typography base font size of 1.125rem (18px)
• Controls (input, button, etc.) inherit font and have a line-height of 1
• Document (html & body) with a height of 100%
• Smooth scrolling and speed-optimized text rendering by default
• Disabled animations and smooth scroll for users requesting reduced motion