initial markup

style.scss

*,
::after,
::before {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

html {
  font-family: sans-serif;
  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  -ms-overflow-style: scrollbar;
  -webkit-tap-highlight-color: transparent;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-size: 62.5%;
  overflow-x: hidden;
  word-break: break-all;
  -webkit-hyphens: auto;
  hyphens: auto;
  -ms-hyphens: auto;
  & p,
  & div {
    font-size: 1rem;
  }
}