.loader {
  bottom: 0;
  height: 100%;
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  width: 100%;
  z-index: 1111;
  background:#fff;
  overflow-x:hidden;
}
.bouncybox {
  height:80px;
  width: 40px;
  position: absolute;
  left: 50%;
  top: 50%;
  -moz-transform:translate(-50%,-50%);
  -ms-transform:translate(-50%,-50%);
  -o-transform:translate(-50%,-50%);
  -webkit-transform:translate(-50%,-50%);
  transform:translate(-50%,-50%);
}
.bouncybox .bouncy {
  width: 40px;
  height: 40px;
  border-radius: 20px;
  background:#ffb600;
  -webkit-animation: bouncy 2s infinite ease-in-out;
  -moz-animation: bouncy 2s infinite ease-in-out;
  -o-animation: bouncy 2s infinite ease-in-out;
  animation: bouncy 2s infinite ease-in-out;
}

@-webkit-keyframes bouncy {
  40% {
    height: 40px;
  }
  50% {
    -webkit-transform: translate(0, 65px);
            transform: translate(0, 65px);
    height: 34px;
    border-radius: 20px;
  }
  65% {
    height: 40px;
  }
}

@keyframes bouncy {
  40% {
    height: 40px;
  }
  50% {
    -webkit-transform: translate(0, 65px);
            transform: translate(0, 65px);
    height: 34px;
    border-radius: 20px;
  }
  65% {
    height: 40px;
  }
}