website/sass/_pico/layout/_document.scss

/**
 * Document
 * Content-box & Responsive typography
 */

// Reboot based on :
// - normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css
// - sanitize.css v13.0.0 | CC0 1.0 Universal | github.com/csstools/sanitize.css
// ––––––––––––––––––––

// 1. Add border box sizing in all browsers (opinionated)
// 2. Backgrounds do not repeat by default (opinionated)
*,
*::before,
*::after {
  box-sizing: border-box; // 1
  background-repeat: no-repeat; // 2
}

// 1. Add text decoration inheritance in all browsers (opinionated)
// 2. Add vertical alignment inheritance in all browsers (opinionated)
::before,
::after {
  text-decoration: inherit; // 1
  vertical-align: inherit; // 2
}

// 1. Use the default cursor in all browsers (opinionated)
// 2. Change the line height in all browsers (opinionated)
// 3. Breaks words to prevent overflow in all browsers (opinionated)
// 4. Use a 4-space tab width in all browsers (opinionated)
// 5. Remove the grey highlight on links in iOS (opinionated)
// 6. Prevent adjustments of font size after orientation changes in iOS
:where(:root) {
  -webkit-tap-highlight-color: transparent; // 5
  -webkit-text-size-adjust: 100%; // 6
  text-size-adjust: 100%; // 6
  background-color: var(--background-color);
  color: var(--color);
  font-weight: var(--font-weight);
  font-size: var(--font-size);
  line-height: var(--line-height); // 2
  font-family: var(--font-family);
  text-rendering: optimizeLegibility;
  overflow-wrap: break-word; // 3
  cursor: default; // 1
  tab-size: 4; // 4
}