body {
  font-family: sans-serif;
  margin: 0;
  padding: 20px;
  background-color: #BBD9CB;
}

h1,h2 {
  text-align: center;
}

#investmentAmount, #interestRate, #investmentDays {
  width: 200px;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

button {
  margin: 10px;
  padding: 10px 20px;
  border: 1px solid #ccc;
  border-radius: 5px;
  cursor: pointer;
}

#result {
  margin-top: 20px;
  border: 1px solid #ccc;
  padding: 20px;
  border-radius: 5px;
  background-color: #006FD6;
  color: #fff;
}

#finalAmount, #interestEarned {
  font-weight: bold;
}