@page { 
/*    size: 8.5in 11in portrait; copied from book, but w3c flags as css validation error */ 
    margin: 0.5in; 
}

/* Hide page elements that will not be printed */ 
 
header img, nav, form { 
    display: none; 
}

/* Setting the page breaks in the document */ 

section {
    height:auto;
}
 
article, aside { 
    page-break-inside: avoid;
}

nav li.currentSection {
    font-size:larger;
    font-weight:bold;
}
 
h1 { 
    font-size: 28pt; 
    text-align: center; 
    width: 100%; 
}

h2 {
    font-size: 22pt;
    text-align: center;
}

h3, h4 {
    font-size: 16pt;
}
h5 {
    font-size: 14pt;
}
h6 {
    font-weight:bold;
}