Benefits:
- One file can be used to control multiple documents having different styles.
- Multiple HTML elements can have many documents, which can have classes.
- To group styles in composite situations, methods as selector and grouping are used.
Demerits:
- Extra download is needed to import documents having style information.
- To render the document, the external style sheet should be loaded.
- Not practical for small style definitions.
anand.johari1994