body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #f4f4f4;
}
.currency-converter {
  text-align: center;
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  min-width: 450px;
}

h2 {
  font-size: 2rem;
}


input, select {
  padding: 10px;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 5px;
  margin: 0.5em;
}