extended_valid_elements
div[*],span[*],meta[*]div[*],span[*],meta[*],iframe[src|title|width|height|allowfullscreen|frameborder|class|id],object[classid|width|height|codebase|*],param[name|value|_value|*],embed[type|width|height|src|*]
valid_children
+body[meta],+div[h2|span|meta|object],+object[param|embed]