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

html,
body,
#root {
  padding: 0;
  margin: 0;
  height: 100%; }

html {
  font-size: 12px; }

@media only screen and (min-width: 840px) {
  html {
    font-size: 14px; } }