I'd also like to throw this into the conversation:
Inline styles also prevent the user from overriding styles with a custom style sheet (think color blind people). This isn't necessarily against ADA/508 compliance, but it should be taken into consideration.
Inline styles also prevent the user from overriding styles with a custom style sheet (think color blind people). This isn't necessarily against ADA/508 compliance, but it should be taken into consideration.