<div>box</div>
* {
  margin : 0;
  padding : 0;
}

div {
  background-color: lightgreen;
  width : 30%;
  padding : 20px;
  margin : 60px auto;
  border : 1px solid black;
}

div:hover{
  transform : rotate(25deg);
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.