Checklist
Ensure you keep to the following guidelines:
- Use meaningful names for classes and IDs (e.g. ".left_column" instead of "class569").
- Create an ID rather than a class if the style can only be used one time on the page.
- Place the CSS in an external style sheet when the style is to be used on more than one HTML page.
- Only use tables for tabular data; use CSS instead of tables for positioning.
- Note that use of attributes such as font & color in HTML tags has been deprecated - use CSS instead.
- Check for valid CSS & HTML using a CSS Validator and a HTML Validator
- Check appearance of pages in multiple browsers to ensure they are rendered correctly.

