html, body {
  width: 100%;
  height: 100%;
  margin: 0;
}

.pic {
  position: relative;
  width: 100%;
  height: 100%;
  background: url('https://popculturemagazine.files.wordpress.com/2016/03/programming-doge.jpg') no-repeat;
  background-size: cover;
  opacity: .8; 
}

.doge {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  color: black;
}

h1 {
  text-shadow: 10px 10px 0 rgba(0,0,0,1);
  font-size: 120px;
  font-family: 'comic sans ms';
}