.github-corner:hover .octo-arm{animation:octocat-wave .56s ease-in-out}@keyframes octocat-wave{0%,to{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave .56s ease-in-out}}