* {
  box-sizing: border-box;
}
body {
  background-color: #203731;
  font-family: Georgia, 'Times New Roman', Times, serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  margin: 0;
}

.container {
  border-radius: 20px;
  background-color: white;
  align-items: center;
  text-align: center;
  width: 600px;
  max-width: 860px;
  padding: 30px;
}

h3 {
  font-size: 20px;
}

.joke {
  font-size: 30px;
  margin: 20px;
  line-height: 40px;
}

.btn {
  font-size: 15px;
  border: 2px solid black;
  width: 200px;
  margin: 5px;
  padding: 10px;
  color: gold;
  background-color: purple;
  border-radius: 10px;
  cursor: pointer;
}

.btn:hover {
  background-color: black;
  transition: 0.7;
}

.btn:active {
  transform: scale(0.98);
}