body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: f4f6f9;
    margin: 0;
    color: #222;
}
header{
    background-color:  black;
    color: white;
    text-align: center;
    text-align: center;
    padding: 30px;
}
h1, p{
    text-align: center;
}
nav{
    text-align: center;
    background-color: white;
    padding: 15px;
}

nav a {
    text-decoration: none;
    background-color: black;
    color: white;
    padding: 10px 15px;
    margin: 5px;
    border-radius: 6px;
    display: inline-block;
}
.question-box{
    background-color: whire;
    padding: 20px;
    margin: 20px auto;
    border-radius: 10px;
    max-width: 800;
    text-align: lext;
}
.question-box h3{
    color: #0055aa;

}
label{
    display: block;
    margin: 8px 0;
}
button {
    background-color: black;
    color:white;
    border:none;
    padding: 12px;
    border-radius: 6px;
    font-size: 16px;
}
button:hover{
    background-color: gray;
}

nav a:hover{
 background-color: gray;
}

main{
    max-width: 900px;
    margin: 30px auto;
    background-color: white;
    padding: 25px;
    border-radius: 10px;
}