body {
  font-family: Roboto;
  background: linear-gradient(to bottom right, #ff6666 0%, #66ffff 100%);
}

#container {
  height: 725px;
  width: 460px;
  margin: 100px auto;
  background: #f7f7f7;
  border-radius: 20px;
}
h1 {
  background: #1F030C;
  color: white;
  padding: 10px 130px;
  text-transform: uppercase;
  font-size: 21px;
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
}
p {
  padding-left: 20px;
   font-size: 20px;
}

#billamt {
  font-size: 14px;
  /*color: #2980b9;*/
  color: red;
  background-color: #f7f7f7;
  width: 60%;
  padding: 8px 8px 8px 8px;
}

#peopleamt {
  width: 60%;
  padding: 8px 8px 8px 8px;
  margin-left: 20px;
  color: red;
  background-color: #f7f7f7;
  font-size: 14px;
}

#serviceQual {
  padding: 20px 20px 20px 20px;
  margin-left: 20px;
  font-size: 25px;
}

button {
  text-transform: uppercase;
  font-weight: bold;
  display: block;
  margin: 30px auto;
  background: #AD133A;
  border-radius: 5px;
  width: 200px;
  height: 50px;
  font-size: 17px;
  color: white;
}

button:hover {
  background: #4c2827;
 
}

button:active {
  position: relative;
  top: 2px;
}

#totalTip{
  font-size: 30px;
  text-align: center;
}

#totalTip:before {
  content: "Tip amount";
  font-size: 20px;
  font-weight: bold;
  display: block;
  text-transform: uppercase;
}

#totalTip sup {
  font-size: 20px;
 
}

#totalTip small {
  font-size: 20px;
  font-weight: bold;
  display: block;
 
}