The layer tag syntax is covered in the CodeHelp site.Remember that the use of layer tag to display external HTML content is not part of HTML4 and future releases of Netscape are likely to use the <object> tag as currently suppported by Microsoft Internet Explorer.
Used within the <ul> or <ol> tags to create the actual items of the list. Every list item should use the endtag </li> but many WYSIWYG web page editors omit the tag which can cause problems validating the resulting HTML file. The <li> tag attributes are now deprecated in HTML4. Use CSS list-style-image and list-style-type properties of the <li> tag.
All attributes, including start, are deprecated in HTML4.
This behaviour can be overridden by CSS. For example, in the above lists, the decimal list type was specifically set for OL and disc type for UL. Take care when you change the liststyle type within a document - the style rule is inherited and subsequent lists in the same documentwill not behave in the default fashion. If you want to have more than one customised list in a singledocument, make sure you state the changed list style type for each <li> tag. (Use a class selectorto reduce typing.)