less damn code

flexbox.css

// element margins
body * + * {
  margin-top: 1.5rem;
}

// grid
.grid {
  display: flex;
  flex-flow: row wrap;
}

.grid > * {
  flex-basis: 10em;
  flex-grow: 1;
}

// global font size
element {
  font-size: calc(1em + 1vw);
}