*{
    margin:0;
    padding:0;
    font-family: 'poppins',sans-serif;
    box-sizing: border-box;
}
.container {
    height:100vh;
    width:100%;
    background:#e3f9ff;
    display:flex;
    align-items:center;
    justify-content:center;
}
.calculator {
    background:#3a4452;
    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(255,255,255,0.1),5px 5px 15px rgba(0,0,0,0.2);
    background:transparent;
    font-size:20px;
    color:#fff;
    cursor:pointer;
    margin:10px;
}
form .displaye{
    display:flex;
    justify-content:flex-end;
    margin:20px 0;
}

form .displaye input{
    text-align:right;
    flex:1;
    font-size:45px;
    box-shadow:none;
}
form input.equal {
    width:150px;

}
form input.operator {
    color:#33ffd8;
}