Differentiate between Inline, Internal, and External CSS.

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answered Nov 11, 2024 by PoonamSharma (68.9k points)
selected Nov 21, 2024 by LokeshVerma

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Difference between Inline, Internal and External CSS:

Feature	Inline CSS	Internal CSS	External CSS
Location	It is used within HTML tag using the style attribute.	It is used within <head> section of HTML document.	It is used in a separate .css file.
Selector Scope	Affects a single element or a group of elements.	Affects multiple elements within the same HTML element.	Affects multiple HTML documents or an entire website.
Reusability	Not reusable. Styles need to be repeated for each element.	Can be reused on multiple elements within the same HTML document.	Can be reused on multiple HTML documents or an entire website.
Priority	Highest priority. Overrides internal and external styles.	Medium priority. Overrides external styles but can be overridden by inline styles.	Lowest priority. Can be overridden by both inline and internal styles.
File Size	Inline styles increase the HTML file size, which can affect the page load time.	Internal styles are part of the HTML file, which increases the file size.	External styles are in a separate file, which reduces the HTML file size and can be cached for faster page loads.
Maintainability	Not easy to maintain. Changes need to be made manually to each element.	Relatively easy to maintain. Changes need to be made in one place in the <head> section.	Easiest to maintain. Changes need to be made in one place in the external .css file.