h1 {
    padding-bottom: 0.6em;
    padding-top: 0;
}

h2 {
    margin-bottom: 0.8em;
}

h3 {
    margin-bottom: 0.9em;
}

h4 {
    line-height: 2.1em;
    margin-top: 1em;
}

h4.link {
    line-height: 2em;
    font-weight: 300;
    font-size: 1.3em;
    margin-top: 0;
}