* 
body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f2f2f2;
    margin: 0;
    padding: 0;
}

h1 {
    margin: 0;
}
.quiz-levels {
    margin: 20px;
}
.level-button {
    display: inline-block;
    padding: 50px 100px;
    background-color: #331da1;
    color: #fff;
    text-decoration: none;
    border: none;
    border-radius: 70%;
    font-weight: bold;
    font-size: 20px;
    margin: 10px;
    cursor: pointer;
    transition: background-color 0.3s;
}
.level-button:hover {
    background-color: #e64a19;
}