*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.container{
    width: 100%;
    height: 100vh;
    background: #75aaa68c;
    display: flex;
    align-items: center;
    justify-content: center;

}
.calculator{
    background-color: rgba(0, 0, 0, 0.82);
    padding: 20px;
    border-radius: 10px;
}
.calculator form input{
    border: 0;
    outline: 0;
    width: 60px;
    height: 60px;
    border-radius: 10px;
    box-shadow: -8px -8px 15px rgba(208, 200, 200, 0.1), 5px 5px 15px rgba(0, 0, 0, 0.3);
    background: transparent;
    font-size: 20px;
    color: white;
    cursor: pointer;
    margin: 10px;
}

form .display{
    display: flex;
    justify-content: flex-end;
    margin: 20px 0;
}
form .display input{
    flex: 1;
    text-align: right;
    font-size: 45px;
    box-shadow: none;
    
}

form input.equal{
    width:145px;
    background-color: rgb(236, 202, 12);
}
form input.operator {
    color: rgb(16, 244, 244);
}