body{
	background-color: #2B2B2B;
}
#testapp {
  padding: 50px;
  text-align: center;
}

.wrapper {
  overflow: hidden;
  margin: auto;
  width: 300px;
  height: 300px;
  border: 2px solid orange;
}

.inner {
  background: skyblue;
}

#scroll .wrapper {
  overflow: scroll;
}