public function removeCss($handle = null)
    {
        if (is_null($handle)) {
            return $this->styles = [];
        }

        unset($this->styles[$handle]);
    }
public function removeCss($handle = null)
    {
        if (is_null($handle)) {
            return $this->styles = [];
        }

        unset($this->styles[$handle]);
    }
public function removeCss ( $ handle = null ) { if ( is_null ( $ handle ) ) { return $ this -> styles = [ ] ; } unset ( $ this -> styles [ $ handle ] ) ; }
Remove a CSS asset, or all.

@param string|null $handle Asset name, or `NULL` to remove all

@return mixed Empty array or void
Remove a CSS asset or all .