body {
  padding: 0;
  width: 100vw;
  height: 100vh;
}

body main {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding-bottom: 200px;
  box-sizing: border-box;
}

body main h1 {
  font-size: 40px;
  margin-bottom: 20px;
}

body main a {
  display: block;
  padding: 10px 20px;
  border: solid 1px #eee;
  border-radius: 2px;
  background-color: #4285F4;
  color: #fff;
}