body {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
#calculator {
  font-family: Arial, Helvetica, sans-serif;
  background-image: linear-gradient(
    to right,
    rgb(215, 215, 255),
    rgb(255, 255, 145)
  );
  border-radius: 50px;
  max-width: 500px;
  overflow: hidden;
}
#display {
  width: 100%;
  padding: 20px;
  font-size: 5rem;
  text-align: left;
  border: none;
  background-image: linear-gradient(
    to right,
    rgb(231, 231, 255),
    rgb(252, 252, 180)
  );
  color: rgb(0, 0, 0);
}
button {
  width: 100px;
  height: 100px;
  border-radius: 50px;
  border: none;
  background-color: rgb(231, 231, 255);
  color: rgb(0, 0, 0);
  font-size: 3rem;
  font-weight: bold;
  cursor: pointer;
}
#buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 25px;
}
p {
  color: rgb(0, 0, 0);
  text-align: center;
  font-size: 20px;
  font-weight: bold;
}
button:hover {
  background-color: rgb(206, 206, 255);
}
button:active {
  background-color: rgb(185, 185, 255);
}
.operators {
  background-color: rgb(252, 252, 180);
}
.operators:hover {
  background-color: rgb(255, 255, 150);
}
.operators:active {
  background-color: rgb(255, 255, 119);
}
footer {
  position: absolute;
  bottom: 0;
  width: 100%;
}