body {
  height: 100vh;
  font-family: montserrat, sans-serif;
  text-align: center;
  background: url("space.jpg") no-repeat center top;
  background-size: cover;
}

h1 {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  font-size: 10vw;
  margin: 0;
  line-height: 0.9;
  color: #797979;
  text-transform: uppercase;
  transform: translate(-50%, -50%);
  mix-blend-mode: multiply;
}

.button {
  position: absolute;
  top: 70%;
  left: 37%;
  font-size: 5vw;
  margin: 0;
  color: #797979;
  text-transform: uppercase;
  mix-blend-mode: multiply;
  border: solid 2px #797979;
}