public function delCss($link) {
        if ( ! empty($link)) {
            if ( ! is_array($link)) {
                $link = [$link];
            }
            if ( ! isset($this->obsolete['css'])) {
                $this->obsolete['css'] = [];
            }
            $this->obsolete['css'] = array_merge($this->obsolete['css'], $link);
        }
    }
public function delCss($link) {
        if ( ! empty($link)) {
            if ( ! is_array($link)) {
                $link = [$link];
            }
            if ( ! isset($this->obsolete['css'])) {
                $this->obsolete['css'] = [];
            }
            $this->obsolete['css'] = array_merge($this->obsolete['css'], $link);
        }
    }
public function delCss ( $ link ) { if ( ! empty ( $ link ) ) { if ( ! is_array ( $ link ) ) { $ link = [ $ link ] ; } if ( ! isset ( $ this -> obsolete [ 'css' ] ) ) { $ this -> obsolete [ 'css' ] = [ ] ; } $ this -> obsolete [ 'css' ] = array_merge ( $ this -> obsolete [ 'css' ] , $ link ) ; } }
deleted css from the css list

@param $link
deleted css from the css list