[penguintri]

How would I make sure the book is using the css for the top margin? This is the css I have for my book.

@namespace h "http://www.w3.org/1999/xhtml";
@page { margin-top: 22pt; margin-bottom: 1pt }
.calibre {
	widows: 1;
	orphans: 1;    
	display: block;
    font-size: 1em;
    margin-bottom: 0;
    margin-left: 0;
    margin-right: 0;
    margin-top: 0;
    page-break-before: always
    }
.calibre1 {
    border-bottom: 0;
    border-top: 0;
    display: block;
    margin-bottom: 0;
    margin-top: 0;
    padding-bottom: 0;
    padding-top: 0;
    text-indent: 1.5em
    }
.calibre2 {
    display: block;
    font-size: 1.6em;
    font-weight: bold;
    margin-bottom: 0.67em;
    margin-left: 0;
    margin-right: 0;
    margin-top: 0.67em
    }
.calibre3 {
    display: block;
    margin-bottom: 0;
    margin-left: 0;
    margin-right: 0;
    margin-top: 0;
    padding-bottom: 0;
    padding-left: 0;
    padding-right: 0;
    padding-top: 0;
    page-break-before: always
    }
.calibre4 {
    border-bottom: 0;
    border-top: 0;
    display: block;
    margin-bottom: 0;
    margin-left: 0;
    margin-right: 0;
    margin-top: 0;
    padding-bottom: 0;
    padding-top: 0;
    text-align: justify;
    text-indent: 1em
    }
.calibre5 {
    display: block;
    font-size: 1.6em;
    font-weight: bold;
    margin-bottom: 0.67em;
    margin-left: 0;
    margin-right: 0;
    margin-top: 0.67em;
    text-align: center
    }
.calibre6 {
	widows: 1;
	orphans: 1;
	font-size: 1.25em;    
	border: 0;
    border-bottom: 0;
    border-top: 0;
    display: block;
    margin-bottom: 0;
    margin-left: 0.28em;
    margin-right: 0.28em;
    margin-top: 0.01em;
    padding-bottom: 0;
    padding-left: 0;
    padding-right: 0;
    padding-top: 0;
    text-align: justify;
    text-indent: 1em
    }
.calibre7 {
    display: block;
    font-size: 1.5em;
    font-weight: bold;
    margin-bottom: 0.83em;
    margin-left: 0;
    margin-right: 0;
    margin-top: 0.83em;
    text-align: center
    }
.calibre8 {
    border-bottom: 0;
    border-top: 0;
    display: block;
    margin-bottom: 0;
    margin-left: 1em;
    margin-right: 1em;
    margin-top: 0;
    padding-bottom: 0;
    padding-top: 0;
    page-break-after: always;
    text-align: justify;
    text-indent: 1.5em
    }
.calibre9 {
    border-bottom: 0;
    border-top: 0;
    display: block;
    margin-bottom: 0;
    margin-top: 0;
    padding-bottom: 0;
    padding-top: 0;
    page-break-after: always;
    text-indent: 1.5em
    }
a {
    color: inherit;
    text-decoration: inherit;
    cursor: default
    }
a[href] {
    color: blue;
    text-decoration: underline;
    cursor: pointer
    }

I didn't realise that em scaled with the font size. I just used it as this is the way calibre default set my margins. What would an approximate equivalent to 0.28em in pt be?