.container {
  display: flex;
  flex-direction: column;
  align-items: center;
}
h1{
    color: #bc0000;
}
.calculator {
    text-align: center;
  
    background: #fff1f1;
    padding: 16px;
    border-radius: 14px;
}

.calculator input {
  font-size: 30px;
  border: 3px solid #c9a1a1;
  border-radius: 6px;

}

.calculator table {
  margin: auto;
  padding: 10px;
}

.calculator table button {
  
    height: 67px;
    width: 76px;
    font-size: 31px;
    border-radius: 6px;
    margin: 2px;

}