* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-align: center;
    font-family: sans-serif;
    overflow-x: hidden;
}

html {
    background-color: gray;
    min-width: 320px;
}

div {
    margin: 150px auto;
    max-width: 750px;
    background-color: rgb(209, 209, 209);
    padding: 50px 20px;
    border: black solid 3pt;
    border-radius: 20px;
    box-shadow: 10px 10px 10px rgb(61, 61, 61);
}

h1 {
    font-size: 50pt;
    margin-bottom: 30px;
}