.container { 
  height: 100vh;
  position: relative;
}
.center {
  width: 100vw;
  text-align: center;
  margin: 0;
  position: absolute;
  top: 40%;
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
}
h1, p {
  padding: 8px 32px;
}