Make an octocat pop-down on mouse over (like https://samwhited.com/projects)

popdown.css

.parent {
  overflow: hidden;
}

.popdown {
  position: absolute;
  top: -60px;
  right: 2em;
  -webkit-transition: all 0.3s ease-out;
     -moz-transition: all 0.3s ease-out;
      -ms-transition: all 0.3s ease-out;
       -o-transition: all 0.3s ease-out;
          transition: all 0.3s ease-out;
}

.popdown:hover {
  top: 0;
}