.loader {
  position: relative;
  font-size: 48px;
  letter-spacing: 6px;
}
.loader:before {
  content: 'Loading';
  color: #fff;
}
.loader:after {
  content: '';
  width: 20px;
  height: 20px;
  background-color: #ff3d00;
  background-image: radial-gradient(circle 2px, #fff4 100%, transparent 0), radial-gradient(circle 1px, #fff3 100%, transparent 0);
  background-position:
    14px -4px,
    12px -1px;
  border-radius: 50%;
  position: absolute;
  margin: auto;
  top: -5px;
  right: 66px;
  transform-origin: center bottom;
  animation: fillBaloon 1s ease-in-out infinite alternate;
}

@keyframes fillBaloon {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(3);
  }
}