h1 {
    color:white;
    text-align:center;
    font-family:sans-serif; 
    font-size:160px;
    margin-top:20%;
}

h2 {
    color:white;
    text-align:center;
    font-family:sans-serif; 
    font-size:40px;
}

p {
    color:#E0E0E0;
    text-align:center;
    font-family:sans-serif; 
    font-size:30px;
}

.slate {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  overflow: auto;
  
}

@keyframes slate {
    from {background-color: white;}
    to {background-color: #E0E0E0;}
}

div {
    background-color: white;
    animation-name: slate;
    animation-duration: 10s;
    animation-iteration-count: infinite;
    animation-direction: alternate;
}