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External Style Sheets
Advantages
* Can control styles for multiple documents at once
* Classes can be created for use on multiple HTML element types in many documents
* Selector and grouping methods can be used to apply styles under complex contexts
Disadvantages
* An extra download is required to import style information for each document
* The rendering of the document may be delayed until the external style sheet is loaded
* Becomes slightly unwieldy for small quantities of style definitions
Embedded Style Sheets
Advantages
* Classes can be created for use on multiple tag types in the document
* Selector and grouping methods can be used to apply styles under complex contexts
* No additional downloads necessary to receive style information
Disadvantages
* This method can not control styles for multiple documents at once
Inline Styles
Advantages
* Useful for small quantities of style definitions
* Can override other style specification methods at the local level so only exceptions need to be listed in
conjunction with other style methods
Disadvantages
* Does not distance style information from content (a main goal of SGML/HTML)
* Can not control styles for multiple documents at once
* Author can not create or control classes of elements to control multiple element types within the document
* Selector grouping methods can not be used to create complex element addressing scenarios
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