To link to an external style sheet
Add the <LINK> tag, between the <HEAD> start and end tags, to each help file or Web page where you want to attach the style sheet. For example:
<LINK REL = "stylesheet" TYPE = "<code><b class="cfe">mime/type</b></mark>" HREF = "<code><b class="cfe">url</b></mark>">
where the value
REL= "stylesheet" indicates that the target source is a style sheet,
mime/type is the MIME type for the style sheet, and
url is the address of the style sheet file.