#calculator{
    border: 1px solid rgb(187,183,183);
    width: 200px;
    border-radius: 5px;
  background-color:black;
}

#display{
    margin: 10px;
  width: 85%;
  font-size: 25px;
  
}
.button_container{
    display: flex;
    justify-content: center;
     flex-wrap: wrap;
}
.button{
background-color: beige;
    height: 45px;
    width: 45px;
    margin: 3px;
   
}