body {
    margin: 40px auto;
    max-width: 700px;
    padding-left: 20px;
    padding-right: 20px;
    background-color: #ffffff;
    color: #444444;
}

h1 {
    font-size: 36px;
    line-height: 1.2;
    margin-top: 1em;
    margin-bottom: 0.5em;
}

h2 {
    font-size: 28px;
    line-height: 1.2;
    padding: 0;
    margin: 0;
}

h3 {
    font-size: 20px;
    margin-top: 1em;
    margin-bottom: 0;
}

h4 {
    font-size: 16px;
    margin-top: 0.5em;
    margin-bottom: 0;
    
}

p, ul, a {
    line-height: 1.4;
    font-size: 18px;
    margin-top: 1em;
    margin-bottom: 1em;
}