html {
    display: table;
    margin: auto;
    margin-top: 35px;
    background-color: #F0F0F0;
}

body {
    display: table-cell;
    color: darkslategray;
    font-family: Arial, Helvetica, sans-serif
}

p {
    text-align: center;
}

h2 {
    text-align: center;
}

div {
    margin-top: 100;
    display: flex;
    justify-content: center;
}