If your bootstrap.css is loaded correctly with the admin_enqueue_scripts action, there might be a stricter selector in an other css file which overrides your style.
The stylesheet with the most precisely selector wins the battle of styling your element.
Related Posts:
- Passing arguments to a admin menu page callback?
- Admin settings update updating every time home page is hit?
- What’s the best method for emptying an option created with the Settings API?
- What is the recommended way to create plugin administration forms?
- How to add a new plugin page under desired Options page?
- Is it possible to add an admin page using add_submenu_page() and pass a var in the query string?
- Overwriting Core WordPress Functions with Plugins
- Naming Admin Menus and Submenus
- Current class on admin menu using add_submenu_page()
- Add Admin Menu Inside Construct or Init
- Hook event for upload image in the menu
- Menu Error in Admin Console with Custom Plugin: You do not have sufficient permissions to access this page
- What is better way to use Bootstrap inside admin panel?
- add_menu_page() with function inside a class [duplicate]
- How to add Font Awesome 5 icons in WP Admin dashboard menu?
- How to put placeholder text in the main post input area?
- Unified Approach for Placing Option Pages
- Plugin with specific admin menu icon
- OOP Plugin and Menu – Call to undefined function register_setting()
- Global State During an Admin Post
- What is the proper way to include Bootstrap when executing a shortcode
- Howto: Use Custom Post Types as Submenu Items in Admin
- Sub Menu content is being duplicated
- Set different custom menu items for different user roles
- Show/Hide ‘add new user’ custom fields in wordpress admin panel by click another field
- is it recommended to use WP_List_Table?
- Plugin sub-menu pages recommended structure and links
- Creating Admin Plugin – Content of a page is displayed at global scope as well
- Add a page in admin without adding menu item
- Gutenberg table block with Bootstrap .table class
- Silently register plugin pages
- WordPress theme options Menu
- Print Dashboard submenu name and filename
- I am trying to make a page in the admin section similar to the appearance of the Profile page for users
- Unable to get a simple plugin admin page to work
- Disable Auto-Expanding Menu in WordPress Admin Menus
- in_array function Problem
- Use options to control jQuery plugin
- Bootstrap Error in WordPress plugin
- Restrict certain actions to plugin-specific admin menu pages only
- Proper way to create an administration page without adding it to the menu
- Pause plugin option page until all data manipulation is complete
- How to add text editor in plugin menu?
- How to make an admin plugin menu page go full screen?
- Bootstrap within shortcode
- New jquery and bootstrap breaks plugin
- How to add admin.php to WP Admin Menu Link
- Add the Twitter Bootstrap framework for the development of my plugins
- Convert each new line in the textfield as a new value in an array
- How put the correct URL to sub-menu plugin?
- Developing a plugin where users can edit entries saved in database
- Glyphicons Dont Show in WordPress Plugin Only
- From my Plugin Settings Page use check boxes to load specific css files (e.g. Bootstrap / Foundation)
- Add a description/hint field in the admin page of a plugin
- Forcing ALL plugin Admin menus into a separate menu
- Link to a admin submenu item using a custom link
- Bootstrap collapse in custom WordPress widget
- Plugin admin list pages as submenu
- Change Admin menu placement using hooks
- Menu_slug used for creating options page
- How to design WooCommerce-like admin tabs for plugin settings page?
- WP Job Manager – Show recent jobs as cards
- Show Admin Menu
- adding an options menu that allows saving multiple sets of said options
- wp_get_post_terms Order by not working
- Naming conventions when using (PHP5) namespaces?
- Readme.txt seems to be cached but not the version
- change add to cart button link [closed]
- Encoding Method for URLs?
- Store custom meta box data as serialized array
- Using Product variations as product addons
- Change author permalink to external URL
- AJAX request not routing through proxy
- Custom Settings Plugin Save foreach checkboxes
- Why won’t this submenu page show? – My First WordPress Plugin
- wordpress full site editing problem when extending core blocks
- Multiple dynamic Tax Query – pass taxonomy argument from array
- Add default custom taxonomy to plugin activation
- ACF Field value in wordpress login message filter
- ajax stopped working when not logged in wordpress
- Overriding the template files using a plugin for all themes
- implementing socket.io with wordpress
- Determine if the current page, is being edited
- List Table action argument not cleared
- Fullwidth slider using background image Flexslider WordPress
- Return value of $wpdb->update() query in plugin is wrong
- Plugin files not updated (cache cleared)
- How to limit the number of posts a user can view based on status
- WordPress permalink setting
- Error when trying to save custom post type settings (ERROR: options page not found)
- How can I pass value to function in add_menu_page?
- Developing a plugin, ran it through P3 Profiler, shows up slow, but I don’t know why
- WordPress plugin tables become corrupt
- How to call a new php page inside a plugin page?
- How can i call from custom fields to the category editor?
- Practical Solutions to HTML5 Video on WordPress
- If I want to create new taxonomies (e.g. Project / Documents / Etc…) is it better to create them in the theme’s functions.php or within a plugin? [duplicate]
- Is the only way to add taxonomy terms via an admin panel?
- Advanced Custom Fields conflicting with custom plugin when saving custom field
- Query posts which are related via postmeta