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

@keyframes dropLogo {
  0% {top: 0%;}
  100% {top: 100%;}
}
@-moz-keyframes dropLogo {
  0% {top: 0%;}
  100% {top: 100%;}
}

#clickLogoHRP2016 {
  animation-name: dropLogo;
  animation-duration: 40s;
  animation-iteration-count: infinite;
  -moz-animation-name: dropLogo;
  -moz-animation-duration: 40s;
  -moz-animation-iteration-count: infinite;
}