body {
  margin: auto;
  width: 300px;
  height: 500px;
  background-color: pink;
  font-family: Arial, Helvetica, sans-serif;
}

.calculator {
  width: 250px;
  background-color: rgb(161, 17, 134);
  border-radius: 19px;
  box-shadow: 0px 4px black;
  padding: 13px;
  margin-top: 20px;
}

.display {
  width: 250px;
  height: 40px;
  margin-bottom: 5px;
  text-align: right;
  border: 1px solid black;
  border-radius: 10px;
  background-color: white;
}

.row {
  display: flex;
  justify-content: center;
  align-items: center;
}

button {
  padding: 20px;
  font-size: 15px;
  border: none;
  border-radius: 10px;
  background-color: rgb(225, 212, 214);
  margin: 5px;
  font-weight: bolder;
}

button:hover {
  background-color: pink;
}