* {
  margin: 0;
  padding: 0;
}
body {
  font-family: Arial, Helvetica, sans-serif;
  height: 100vh;
  text-align: center;
}
.container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 1rem;
}
h1 {
  padding: 1rem;
}
label {
  padding: 1rem;
  font-size: 1.5rem;
  font-weight: bold;
}
input {
  padding: 1rem;
  border: 2px solid blue;
  border-radius: 10px;
  width: 20%;
}
button {
  border: none;
  padding: 1rem 2rem;
  margin-top: 10px;
  background-color: blue;
  border-radius: 10px;
  color: white;
  font-size: large;
}

.output {
  padding: 1rem;
}