style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@500&display=swap');
*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.container{
    width: 100%;
    height: 100vh;
    background: linear-gradient( 180.6deg,rgb(0, 255, 255), rgba(12, 12, 12, 0.384));
    display: flex;
    align-items: center;
    justify-content: center;
}

.calculator{
    background: linear-gradient( -180.6deg, rgb(27, 26, 26) 11.2%, rgb(54, 51, 51) 91.1% );
    padding: 20px;
    border-radius: 10px;
    box-shadow: -8px -8px 15px rgba(12, 206, 206, 0.1), 5px 5px 15px rgba(0, 0, 0, 0.2);
}

.calculator form input{
    border: 0;
    outline: 0;
    width: 60px;
    height: 60px;
    border-radius: 10px;
    color: white;
    box-shadow: -8px -8px 15px rgba(255, 255, 255, 0.1), 5px 5px 15px rgba(0, 0, 0, 0.2);
    background: transparent;
    font-size: 16px;
    cursor: pointer;
    margin: 10px;
    font-weight: 400;
    border: 2px solid #e25a00;
    font-family: 'Poppins', sans-serif;
}

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



form input.equal{
    width: 145px;
}

#allClear{
    background-color: #e25a00;
}

#allClear:hover{
    background-color: #3a4452;
}
#allClear:hover{
    border: 2px solid #e3f9ff;
}

.hover:hover{
    border: 2px solid #e3f9ff;
    background-color: aqua;
    color: black;
    font-weight: 700;
    font-size: 20px;
}
.heading{
    color: azure;
}


.head{
    display: flex;
}

.logo{
    width: 40px;
    justify-content: flex-end;
}

.backimg{
    width: 800px;
    justify-content: left;
}