Create a cascading style sheet
You can create external and internal cascading style sheets (CSS) and inline styles to format a web page and its content. For information about each type of style sheet, see Controlling appearances with styles.
Do one of the following:
On the File menu, point to New and then click CSS.
On the File menu, click New. In the New dialog box, on the Page tab, in the list on the left click General, in the list on the right click CSS, and then click OK.
Click the arrow on New Document in the Common or Standard toolbars and then click CSS .
To create a new external CSS and create a new style for the style sheet, in the Apply Styles or Manage Styles panel or the Style toolbar, click New Style, and then in the New Style dialog box, set the Define in option to New style sheet.
Open the web page you want to contain the CSS.
In the Apply Styles or Manage Styles panels, on the Style toolbar, or on the Format menu, click New Style.
In the New Style dialog box, in the Define in drop-down menu, select Current page.
For information about creating a new style, see Create a style.