body{
    justify-content: center;
    display: flex;
    background-color: white;
    gap: 30px;
}
 
.calculator{
    border-radius: 30px;
    padding: 20px;
    border: none;
background-color: rgb(27, 26, 26);
margin-top: 80px;
}
#display{
    width: 250px; ;
    height: 40px;
    background-color: white;
    border-radius: 5px;
    margin-bottom: 10px;
    text-align: right;
    display: flex;
    color: rgb(0, 0, 0);
}
.buttons{
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 10px;
    color:white

}

button{
    height: 50px;
    font-size: 1.2rem;
    background-color: #bbb9b9;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: backgroud-color 0.2s;
    color: black;
}
 button:hover{
background-color: #979595;
 }



input:focus{ 
    outline: none;
}

@media (max-width: 900px){

    button{
        color: black;
    }
}