html{ 
    Font-size: 20px;
    text-indent: 1.5em;
    font-family: sans-serif
}
h1{
    font-size: 2em;
    text-align: center;
}
h2{
    font-size: 1.5em;
    font-family: "arial", "helvetica", "sans-serif"
}
p{
    text-align: justify
}