#buttons{
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 10px;
    padding: 20px;
}
button{
    width: 100px;
    height: 100px;
    border-radius: 25px;
    border: none;
    background-color:white;
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.5s;
}
#calc{
    font-family: Arial, Helvetica, sans-serif;
    background-color: rgb(195, 195, 195);
    border-radius: 10px;
    max-width: 500px;
    overflow: hidden;
}
#display{
    width: 92%;
    font-size: 40px;
    padding: 20px;
    text-align: right;
    border-radius: 10px;
    background-color: rgb(221, 220, 220);
    border: none;

}
body{
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
button:hover{
    background-color: rgb(212, 212, 212);
    transition: ease;
}
.op{
    background-color: orange;
}
.op:hover{
    background-color: rgb(251, 182, 53);
}