.postBody h1
{
    margin: 15px 0;
    padding: 0;
    font-weight:bold;
    font-size: 150%;
}
.postBody h2
{
    margin: 15px 0;
    padding: 0;
    font-weight:bold;
    font-size: 135%;
}
.postBody h3
{
    margin: 15px 0;
    padding: 0;
    font-weight:bold;
    font-size: 120%;
}