-        description = self._html_search_regex(
-            r'<p class="description.*?"[^>]*>(.*?)</p>', webpage, 'description')
+        description = get_element_by_id('slideshow-description-paragraph', webpage) or self._html_search_regex(
+            r'(?s)<p[^>]+itemprop="description"[^>]*>(.+?)</p>', webpage,
+            'description', fatal=False)