body {
    background-color: whitesmoke;
    margin: 40px;
    padding: 20px;
}

h1 {
   
    text-align: center;
    font-size: 32px;
    margin-bottom: 30px;
}

p {
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    line-height: 1.8;
    font-size: 18px;
    margin-bottom: 20px;
    border: 1px solid lightgray;
}

iframe {
    display: block;
    margin: 30px auto;
    max-width: 100%;
    border-radius: 10px;
}