styles.css

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    background-color: burlywood;
}

h1{
    display: flex;
    text-align: center;
    justify-content: center;
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    font-size: 40px;
    padding: 18px;
    color: black;
    margin: 3px;
    border: 0;
    border-radius: 100%;
    
}

#container{
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding-bottom: 10rem;
}


#appBg{
    height: 25rem;
    width: 20rem;    
}

#appBg form{
    padding: 6px;
    height: 100%;
    width: 100%;
    background-color: black;
    border-radius: 10px;
    box-shadow: 5px 5px 5px 5px black; 
}

#appBg input[type=textfield]{
    height: 25%;
    width: 100%;
    cursor: default;
    font-family: 'Roboto', sans-serif;
    background-color: white;
    color: black;
    padding: 15px;
    text-align: center;
    font-size: 50px;
    border: 0;
    outline: none;
}

#appBg input[type=button], input[type=reset]{
    width: 22%;
    cursor: pointer;
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    font-size: 25px;
    padding: 18px;
    color: black;
    margin: 3px;
    border: 0;
    border-radius: 100%;
}

#appBg .orange{
    background-color: rgb(253, 149, 3);
    color: white !important;
}

#appBg .gray{
    background-color: rgb(51, 51, 51);
    color: white !important;
}