body {
  background-image: url("https://images.unsplash.com/photo-1526304640581-d334cdbbf45e?q=80&w=2670&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}

.center {
  display: flex;
  justify-content: center;
}

#container {
  background-color: rgba(151, 172, 164, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-wrap: wrap;
  width: 600px;
  height: 725px;
  border-radius: 40px;
  color: rgb(33, 32, 32);
}

form {
  display: flex;
  flex-direction: column;
  font-family: "Montserrat", sans-serif;
  margin: 20px;
}

h1 {
  font-family: "Montserrat", sans-serif;
  color: #1e4f2c;
  align-self: center;
}

input {
  font-family: "Montserrat", sans-serif;
  padding: 5px;
}

#addTip {
  background-color: #6e86e6;
  border: none;
  border-radius: 10px;
  padding: 5px;
  font-family: "Montserrat", sans-serif;
}

#btn {
  background-color: #389b3b;
  padding: 10px;
  border-radius: 10px;
  border: none;
  margin-top: 10px;
  font-family: "Montserrat", sans-serif;
}

#tip {
  font-family: "Montserrat", sans-serif;
  display: none;
}

#showTotalAmountToPay {
  display: flex;
}

#billSplit,
#totalTip,
#totalAmount {
  font-family: "Montserrat", sans-serif;
  background-color: #de7878db;
  margin: 20px;
  padding: 0 20px 20px 20px;
  border-radius: 40px;
  border: 1px solid black;
}