h1 {
    font: 3.5em Arial;
    font-weight: bold;
    letter-spacing: -0.08em;
}

h2 {
    font: 2.3em Georgia, "Times New Roman";
}

h3 {
    font: 1.3em Arial;
    margin-bottom: 3px;
    color: #3c57a7;
    font-weight: bold;
}

h4 {
    font: 1.0em Arial;
}

h3.cat_title, h3.cat_title a {
    color: #333;
    letter-spacing: -0.05em;
    font-size: 30px;
    margin-bottom: 20px;
}

h3.chapter_title, h3.chapter_title a {
    color: #333;
    letter-spacing: -0.05em;
    font-size:15px;
    margin-left: 10px;
    margin-bottom: 15px;
}

h3#respond {
    margin-top: 0px;
    padding-top: 20px;
}

h3#comments {
    margin-top: 32px;
    padding-left: 0px;
}

h3.authors {
    margin-top: 15px;
}