JSFiddle - React, Tailwind, and code Playground

HTML

<div id="slideout">
  <img src="http://eduardovalencia.com/wp-content/uploads/2011/03/FEEDBACK-LOGO-PURPLE.jpg" alt="Feedback" />
  <div id="slideout_inner">
    Hi Welcome to Stack Overflow
  </div>
</div>

CSS

#slideout {
  position: fixed;
  top: 40px;
  left: 0;
  -webkit-transition-duration: 0.3s;
  -moz-transition-duration: 0.3s;
  -o-transition-duration: 0.3s;
  transition-duration: 0.3s;
}
#slideout_inner {
  position: fixed;
  top: 40px;
  left: -250px;
  -webkit-transition-duration: 0.3s;
  -moz-transition-duration: 0.3s;
  -o-transition-duration: 0.3s;
  transition-duration: 0.3s;
}
#slideout:hover {
  left: 250px;
}
#slideout:hover #slideout_inner {
  left: 0;
}
img
{
    width:100px;
    height:100px;
}