.main {
    width: 50%;
    margin: auto;
}
h1 {
    text-align: center;
    font-family: sans-serif;
    color: white;
    font-size: 3em;
    background-color: #474747;
    border-radius: 5em;
    margin: auto;
}
h2 {
    text-align: center;
    font-family: sans-serif;
    color: white;
}
h3 {
    text-align: center;
    font-family: sans-serif;
    color: white;
    font-size: 3em;
    background-color: #474747;
    border-radius: 5em;
    margin: auto;
}
p {
    text-align: center;
    font-family: sans-serif;
    color: white;
    font-size: 2em;
}
body {
    background-color: #2b2b2b;
}
a {
    text-align: center;
    font-family: sans-serif;
    color: white;
    font-size: 1.5em;
}
a:visited {
    color: white;
}
a:hover {
    text-decoration: underline;
}