@charset "UTF-8";
/* CSS Document */

#wrapper {max-width: 1200px; margin: 0 auto;}


.box1 {
  width: 200px;
  height: 200px;
  background-color: yellow;
  transition: background-color 1s, width 0.5s;
}

.box1:hover {
  width: 500px;
  background-color: red;
}



