What is WordPress Hook: page_css_class
The page_css_class hook in WordPress is used to add custom CSS classes to the body tag of a specific page or post. This allows developers to target and style individual pages or posts with unique CSS rules.
Understanding the Hook: page_css_class
The page_css_class hook is located within the body_class() function in WordPress. This function is responsible for generating the CSS classes that are applied to the body tag of a page or post. By using the page_css_class hook, developers can add additional classes to this list based on specific conditions or criteria.
Hook Parameters (if applicable): page_css_class
The page_css_class hook does not accept any parameters. It simply allows developers to add custom CSS classes to the body tag based on specific conditions or criteria within their WordPress theme or plugin.
Hook Doesn’t Work: page_css_class
If the page_css_class hook is not working as expected, it may be due to a conflict with other functions or plugins that modify the body classes. Developers should ensure that their hook is being added at the appropriate time in the WordPress lifecycle to avoid conflicts. Additionally, checking for syntax errors or typos in the hook implementation is recommended.
Best Practices & Usage Notes (if applicable): page_css_class
When using the page_css_class hook, it’s important to consider the impact of adding custom CSS classes to the body tag. Overuse of custom classes can lead to bloated and inefficient CSS, so it’s best to use this hook sparingly and only when necessary. Additionally, developers should ensure that any custom classes added through this hook are well-documented and clearly indicate their purpose.
page_css_class Usage Example: page_css_class
“`php
function custom_page_css_class( $classes ) {
if ( is_page( ‘about’ ) ) {
$classes[] = ‘about-page’;
}
return $classes;
}
add_filter( ‘body_class’, ‘custom_page_css_class’ );
“`
In this example, the custom_page_css_class function adds the ‘about-page’ class to the body tag when the current page is the ‘about’ page. This allows developers to target and style the ‘about’ page with specific CSS rules.
