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add_editor_style › WordPress Function

add_editor_style ( $stylesheet = 'editor-style.css' )
  • (array|string) $stylesheet Optional. Stylesheet name or array thereof, relative to theme root. Defaults to 'editor-style.css'
    Erforderlich: Nein
    Standard: 'editor-style.css'
Definiert in:

Adds callback for custom TinyMCE editor stylesheets.

The parameter $stylesheet is the name of the stylesheet, relative to the theme root. It also accepts an array of stylesheets. It is optional and defaults to 'editor-style.css'. This function automatically adds another stylesheet with -rtl prefix, e.g. editor-style-rtl.css. If that file doesn't exist, it is removed before adding the stylesheet(s) to TinyMCE. If an array of stylesheets is passed to add_editor_style(), RTL is only added for the first stylesheet. Since version 3.4 the TinyMCE body has .rtl CSS class. It is a better option to use that class and add any RTL styles to the main stylesheet.


function add_editor_style( $stylesheet = 'editor-style.css' ) {
	global $editor_styles;

	add_theme_support( 'editor-style' );

	$editor_styles = (array) $editor_styles;
	$stylesheet    = (array) $stylesheet;

	if ( is_rtl() ) {
		$rtl_stylesheet = str_replace( '.css', '-rtl.css', $stylesheet[0] );
		$stylesheet[]   = $rtl_stylesheet;

	$editor_styles = array_merge( $editor_styles, $stylesheet );