html {
  box-sizing: border-box;
  font-size: 62.5%;
  height: 100%;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

body {
  background: #fff;
  color: #333;
  display: grid;
  font: 1.6em/1.5 "Open Sans", sans-serif;
  grid-template-rows: 1fr auto;
  margin: 0;
  min-height: 100%;
}

main {
  align-items: center;
  display: flex;
  justify-content: center;
}

h1 {
  font-size: 3em;
  margin: 0;
  text-transform: uppercase;
}

a {
  color: #333;
  text-decoration: none;
}
@media (hover: hover) {
  a:hover {
    text-decoration: underline;
  }
}

footer {
  background: #f0f0f0;
}

p {
  margin: 0;
  padding: 0.5em 1em;
  text-align: right;
}