Some things to consider in this reset:

• an anonymous layer is used.
• border-box for all
• reset margins and borders
• reset body margins and paddings.
• min body height is 100%
• typography: line-height 1.5; prevent text-size-adjust for mobile
• but headings, button, input and label get a smaller line-height
• prevent media content overflow with max-inline-size: 100%; display: block; block-size: auto
• fill svg with currentColor for svg without fill properties
• inherit fonts in fields
• textarea should resize only vertically
• remove fieldset borders
• text with text-wrap: pretty
• every digit has its own size (use tabular-nums for tables, time, math) with font-variant-numeric: proportional-nums
• overflow-wrap: break-word on texts and heading to avoid inline overflows
• get the numbers on the same baseline with font-variant-numeric: lining-nums;
• hanging punctuation must be set properly
• code clarity is a must, so font-variant-numeric: slashed-zero is useful.
• collapse table borders
• reset sup and sub line-height because they are messing with it in texts
• align opacity with :disabled to 0.8 for all browsers and set the cursor: not-allowed
• add an outline-offset to 0.2rem for :focus-visible