code: function( width, height ) {
  		if( arguments.length === 2 ) {
  			this.width = width;
  			this.height = height;
  		} else {
  			this.width = this.container.width();
  			this.height = this.container.height();
  		}
  
  		if( this.isInitialised === true ) {
  			this.root.callDownwards( 'setSize', [ this.width, this.height ] );
  
  			if( this._maximisedItem ) {
  				this._maximisedItem.element.width( this.container.width() );
  				this._maximisedItem.element.height( this.container.height() );
  				this._maximisedItem.callDownwards( 'setSize' );
  			}
  
  			this._adjustColumnsResponsive();
  		}
  	}
docs: Updates the layout managers size
  
  @public
  @param   {[int]} width  height in pixels
  @param   {[int]} height width in pixels
  
  @returns {void}