Navigator 4 provides a tag for isolating advisory content that displays in browsers that don't recognize the layer element. All content between the start and end tags of the nolayer element is not rendered in Navigator 4 but is rendered in other browsers (which ignore the tag but not the content). You can place the nolayer element anywhere you want, but be aware that it won't be positioned like the layer element is intended to be. Netscape 6 (a nonlayer browser) renders the nolayer element's content.

There are no attributes for this element. If you attempt to set style sheet rules for the nolayer element, they are ignored by browsers such as Internet Explorer. You can, however, wrap the nolayer element inside a div or span element to associate a style sheet rule with the advisory text.

The language being used for the element's attribute values and content. A browser can use this information to assist in proper rendering of content with respect to details such as treatment of ligatures (when supported by a particular font or required by a written language), quotation marks, and hyphenation. Other applications and search engines might use this information to aid the selection of spell-checking dictionaries and the creation of indices.