body{
    background-color: rgb(124, 106, 237);
display: flex;
display: block;
justify-content: center;
font-family: 'Times New Roman', Times, serif;
font-size: 20px;
color: whitesmoke;
}

header{
    background-color: rgb(50, 34, 93);
    text-align: center;
    border: solid black 4px;
    margin-bottom: 10px;
    margin-top: 30px;
}

section{
    text-align: center;
}

.card{
    background-color: rgb(50, 34, 93);
    border: solid black 4px;
    margin-bottom: 10px;
    margin-top: 30px;
    font-weight: bolder;

}

button{
    background-color: brown;
    border: solid black 3px;
    font-size: 30px;
    margin: 20px;
}

#A,
#B,
#C,
#D{
font-size: 20px;
}