body {
  font-family: Arial, sans-serif;
  margin: 0;
  background-color: #ffffff;
}

.header {
  background-color: #184c3b;
  color: white;
  text-align: center;
  padding: 10px;
  font-size: 18px;
}

.nav-bar {
  background-color: #29dcc1;
  color: white;
  padding: 60px;
  text-align: center;
  font-weight: bold;
  font-size: 40px;
}

.form-section {
  padding: 20px;
  text-align: center;
}

select {
  padding: 10px;
  margin: 10px;
  width: 200px;
}

button {
  padding: 6px 12px;
  margin-top: 20px;
  background-color: #007766;
  color: white;
  border: none;
  cursor: pointer;
  border-radius: 4px;
}

.content {
  text-align: center;
  padding: 30px;
  color: purple;
  font-size: 20px;
  font-weight: bold;
}

.result-box {
  border: 2px solid #4CAF50;
  padding: 30px;
  margin: 20px auto;
  width: 400px;
  min-height: 50px;
  font-family: Arial, sans-serif;
  background-color: #f9f9f9;
  box-shadow: 2px 2px 5px rgba(0,0,0,0.1);
  border-radius: 5px;
  text-align: center;
}