In case you are not really sure what it is you are looking for in a web site, and are not comfortable with the language and acronyms of the Internet World, here are some definitions and information:

HTML - is an acronym for hyper text, multi language. It is the "language" in which the Internet sends and receives information. It is the the publishing language of the World Wide Web.

SHTML - The S stands for 'server side include' or SSI. When an SHTML web page is sent to the web browser window, it gets assembled on the server and then sent to be viewed. The normal HTML tags all still work the same, the SHTML simply lets you include other aspects into the HTML page. We use this style of design primarily for navigation and any static content our clients might require.

SSI - A server-side scripting language, or programming language. SSI scripting commands are embedded within a web page and are parsed and executed on the web server to generate dynamic HTML pages. Common uses of SSI are to include files (e.g. a header or footer file) that are used on multiple web pages, or to show the current date and time.

CSS - A cascading style sheet (CSS) is a list of layout commands (also known as rules) that can assign various rendering properties to HTML elements. Style rules can be specified for font style, font size, hyperlink properties, colors, basic layout properties, and more. All these rules are collected and merged (known as a "cascading" of styles) when the document is rendered to form a single style rule for each element. Style sheets allow a much greater degree of layout and display control than basic HTML language. Style sheets are also backward compatible - they can be mixed with HTML styling elements and attributes so that older browsers can view content as intended.