html, body, #main, #main div{
  height: 100%;
  margin: 0;
}

#pulser {
  -webkit-animation: pulse 3s linear;
  -moz-animation: pulse 3s linear;
  animation: pulse 3s linear;
  
  -webkit-animation-iteration-count: infinite;
  -moz-animation-iteration-count: infinite;
  animation-iteration-count: infinite;
}

@-moz-keyframes pulse {
 0% {
    -moz-transform: scale(0);
    opacity: 0.0;
 }
 25% {
    -moz-transform: scale(0.2);
    opacity: 0.1;
 }
 50% {
    -moz-transform: scale(0.5);
    opacity: 0.3;
 }
 75% {
    -moz-transform: scale(1);
    opacity: 0.6;
 }
 100% {
    -moz-transform: scale(1.6);
    opacity: 0.0;
 }
}

@-webkit-keyframes "pulse" {
 0% {
    -webkit-transform: scale(0);
    opacity: 0.0;
 }
 25% {
    -webkit-transform: scale(0.2);
    opacity: 0.1;
 }
 50% {
    -webkit-transform: scale(0.5);
    opacity: 0.3;
 }
 75% {
    -webkit-transform: scale(1);
    opacity: 0.6;
 }
 100% {
    -webkit-transform: scale(1.6);
    opacity: 0.0;
 }
}

div{
  transition: background-color 1s ease;
}

p{
  text-align: center;
  font-family: 'Baloo Bhai', cursive;
  color: white;
  font-size: 2em;
}

h1{
  text-align: center;
  font-family: 'Baloo Bhai', cursive;
  color: white;
  font-size: 40px;
  background-color: #333;
  width: 170px;
  height: 55px;
  
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  margin: auto;
  padding-right: 10px;
  padding-left: 10px;
  
  transition: all 0.5s ease;
}

h1:hover{
  box-shadow: 10px 7px 7px white;
}