footer {
    position: fixed;
    bottom: 0;
    width: 100%;
}

.tulisan-besar {
    font-size: 5rem;
}

html { 
  background: url('sc1.webp') no-repeat center center fixed; 
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

/* tablet */
@media only screen and (min-width: 769px) and (max-width: 1281px) { 
    html { 
      background: url('tablet.jpg') no-repeat center center fixed; 
      -webkit-background-size: cover;
      -moz-background-size: cover;
      -o-background-size: cover;
      background-size: cover;
    }
}

/* hp */
@media(max-width: 768px) {
    html { 
      background: url('hp.png') no-repeat center center fixed; 
      -webkit-background-size: cover;
      -moz-background-size: cover;
      -o-background-size: cover;
      background-size: cover;
    }
}