body {
position: relative;
margin: 0;
color: blue;
text-align: center;
overflow: auto;
font-weight: bold;
font: optional;
}

body::before{
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url(Logo.png);
    background-size: cover;
    background-position: center;
    filter: blur(8px);
    z-index: -1;
}

a {
    color: wheat;
}


marquee {
    color: azure;
    font: optional;
}

.container{
    border-radius: 10px;
    display: flex;
    margin: auto;
    width: 50%;
    height: 100vh;
    flex-direction: column;
    font-family: Poppins, sans-serif;
    align-items: center;
    justify-content: center;
}

.calculator {
    background-color: #304452;
    border-radius: 10px;
    padding: 10px;
}

.calculator form input {
    border: 0;
    outline: 0;
    width: 68px;
    height: 68px;
    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: white;
    cursor: pointer;
    margin: 10px;
}

form .display{
    display: flex;
    justify-content: flex-end;
    margin: 20px 0;
} 

form .display input {
    text-align: right;
    flex: 1;
    font-size: 45px;
    box-shadow: 0;
}

form input.equal {
    width: 145px;
}

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

footer{
    position: relative;
    bottom: 0;
     color: wheat;
    text-align: center;
    font-weight: bold;
    font-size: 20px;
    font-family: cursive;
}