Here's an example on how to animate an image behind your profile.

If you want it to show up in front remove z-index.

<img height=64 width=64 id="Bitcoin" src="https://s2.coinmarketcap.com/static/img/coins/200x200/1831.png">

<style>

#Bitcoin{

  position: absolute;

  animation-name: bitcoinAnimation;

  animation-duration: 5s;

  animation-iteration-count: infinite;

  z-index: -1;

}

@keyframes bitcoinAnimation {

  0%   {top: 10%; left:10%}

  25%  {top: 10%; left:90%}

  50%  {top: 90%; left:90%}

  75%  {top: 90%; left:10%}

  100%   {top: 10%; left:10%}

}

</style>