* {
  padding: 0;
  margin: 0;
}
body {
  background: rgb(235, 244, 242);
  height: 100vh;
  transition: 0.5s;
}
h3 {
  padding: 15px;
  background: rgba(30, 30, 30, 0.8);
  color: whitesmoke;
  border-radius: 10px;
  transition: 1.5s;
}