public/ckeditor/_source/core/dom/document.js
function( cssFileUrl )
		{
			if ( this.$.createStyleSheet )
				this.$.createStyleSheet( cssFileUrl );
			else
			{
				var link = new CKEDITOR.dom.element( 'link' );
				link.setAttributes(
					{
						rel		:'stylesheet',
						type	: 'text/css',
						href	: cssFileUrl
					});

				this.getHead().append( link );
			}
		}
function( cssFileUrl )
		{
			if ( this.$.createStyleSheet )
				this.$.createStyleSheet( cssFileUrl );
			else
			{
				var link = new CKEDITOR.dom.element( 'link' );
				link.setAttributes(
					{
						rel		:'stylesheet',
						type	: 'text/css',
						href	: cssFileUrl
					});

				this.getHead().append( link );
			}
		}
function ( cssFileUrl ) { if ( this . $ . createStyleSheet ) this . $ . createStyleSheet ( cssFileUrl ) ; else { var link = new CKEDITOR . dom . element ( 'link' ) ; link . setAttributes ( { rel : 'stylesheet' , type : 'text/css' , href : cssFileUrl } ) ; this . getHead ( ) . append ( link ) ; } }
Appends a CSS file to the document.
@param {String} cssFileUrl The CSS file URL.
@example
<b>CKEDITOR.document.appendStyleSheet( '/mystyles.css' )</b>;
Appends a CSS file to the document .