Internal styling involves embedding CSS directly within an HTML document. This is done using the <style> tag inside the <head> section of the HTML file.
Here’s an example of internal styling.
internal-css.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Internal Styling Example</title> <style> body { background-color: lightblue; } h1 { color: navy; text-align: center; } p { font-size: 20px; color: darkred; } </style> </head> <body> <h1>Welcome to My Page</h1> <p>This is an example of internal styling.</p> </body> </html>
In this example, the <style> tag contains CSS rules that style the body, h1, and p elements directly within the HTML file.
When to Use Internal Styling
1. Small Projects or Prototypes: Internal styling is convenient for small projects or prototypes where you don’t need to maintain a separate CSS file.
2. Single Page Styles: It is useful when you want to style a single HTML page uniquely without affecting other pages.
3. Quick Changes: If you need to make quick changes to the styling of a specific page without dealing with external CSS files.
Pros of Internal Styling
1. Simplicity: Everything is contained within a single file, making it easier to manage for small projects.
2. Quick Access: The styling is right within the HTML file, so there’s no need to switch between multiple files.
3. Overriding External Styles: You can use internal styling to override external CSS styles for a specific page.
Cons of Internal Styling
1. Maintenance: As the project grows, internal styling can become difficult to maintain. It’s harder to manage large amounts of CSS within a single HTML file.
2. Code Duplication: If you use the same styles across multiple pages, you’ll have to duplicate the CSS in each HTML file.
3. Performance: Internal styles are loaded with the HTML, which can increase the page's size and load time if the styles are extensive.
4. Lack of Separation of Concerns: Mixing HTML structure with CSS styling goes against the principle of separating concerns, making the code less modular.
Internal styling can be useful for specific scenarios, but for larger projects or sites, it’s generally better to use external CSS to keep your codebase organized and maintainable.
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