h3 {
  color: pink;
}

/*
    var aa = xxx1;
*/
.happy {
  cursor: pointer;
}

.box {
  border: 2px solid #f00;
  width: 500px;
  height: 500px;
  border-radius: 20px;
  box-shadow: 10px 50px 15px yellow;
}

.box h1 {
  color: skyblue;
  color: red;
  font-size: 24px;
  font-style: italic;
  font-weight: 300;
}

.box ul {
  width: 250px;
  background-color: yellow;
  border: 2px solid #f00;
}

.box ul li {
  color: red;
  font-size: 20px;
}

.box ul li:hover {
  color: purple;
}