You need to link the stylesheet to the html file.
Right click the file(s) in the book browser pane on the left and select ‘link stylesheet’. Then select your css sheet.
If you are styling all your <h1>s the same, you don’t need to give them a class. Simply style the <h1> as:
Code:
CSS
h1 {
font-variant: small-caps;
font-size: 1.5em;
font-family: 'Times New Roman',Times,serif;
text-align: center}
HTML
<h1>Foreword</h1>