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To apply custom styling specifically to your category blog page, inspect the <body> tag using your browser's developer tools. Joomla dynamically assigns unique classes to the body based on the page type. For a category blog page, you should find a class such as .view-category. Similarly, for a single article page, you will see .view-article.
You can target these classes in your custom CSS file to apply styles exclusively to the category blog page.
This ensures that the styles apply only to the category blog page without affecting other sections of your site.