make a div fold out to show content

I am trying to achieve the same effect here so when you hover on the div it folds out and shows the content, but I cannot figure out how to do this.

So far I am able to make the content slide in by using the following code. Code underneath and jsfiddle can be seen here.

html

<div class="artist artist-1"></div>
<div id="artist-text">Hi there</div>

css

.artist-1:hover + #artist-text {
  display: block;
}

#artist-text {
  display: none;
  background-color: #000000;
  width: 130px;
  padding: 10px;
  position: absolute;
  left: 50%;
  top: 60%;
  animation-duration: 1s;
  animation-name: slideLeft;
}

.artist {
  height: 100px;
  width: 100px;
}

.artist-1 {
  background-color: red;
  position: absolute;
  left: 20%;
  top: 40%;
}

@keyframes slideLeft {
  from {
    margin-left: 100%;
    width: 100%; 
  }

  to {
    margin-left: 0%;
    width: 100%;
  }
}