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  background: black
  width: 200px
  height: 200px
  background-color: gold
  position: relative
  animation: slideIn 1s ease-in, fadeIn .4s ease-in
    animation-name: move
    animation-duration: 2s
    animation-timing-function: ease-out
    animation-iteration-count: infinite
    animation-delay: .2s
    animation-fill-mode: both //none backwards forwards both
    animation-direction: alternate // normal reverse alternate alternate-reverse
   // animation: move 2s ease-out

@keyframes move {
 from {
  transform: translateX(0)
 to { 
 transform: translateX(100px)

@keyframes slideIn {
  0% {transform: translateY(400px); animation-timing-function: ease-out}
  60% {transform: translateY(-50px);  animation-timing-function: ease-in}
  80% {transform: translateY(10px);  animation-timing-function: ease-out}
  100% {transform: translateY(0);  animation-timing-function: ease-in}

@keyframes fadeIn {
  from {opacity: 0}
    to {opacity: 1}


Every CSS animation has two parts
- define the animation  (@keyframes)
- assign it to a specific element or elements