*{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body{
    font-family: sans-serif;
    color: rgb(121, 121, 121);
    width: 431px;
    margin: 0 auto;
    background-color: rgb(41, 41, 41);
}
h1, h3, p{
    text-align: center;
    padding-top: 20vh;
}