ID ) ) { $classes[] = 'post-has-thumbnail'; } return $classes; } } //Add portfolio thumbnail size to WordPress admin add_filter( 'image_size_names_choose', 'cpotheme_add_thumbnail' ); if ( ! function_exists( 'cpotheme_add_thumbnail' ) ) { function cpotheme_add_thumbnail( $sizes ) { return array_merge( $sizes, array( 'portfolio' => __( 'Portfolio Size', 'allegiant' ) ) ); } } //Add a wrapper to embeds so they become responsive add_filter( 'embed_oembed_html', 'cpotheme_embed_wrapper', 10, 3 ); function cpotheme_embed_wrapper( $html ) { if ( strstr( $html, 'youtube.com' ) != false || strstr( $html, 'vimeo.com' ) != false || strstr( $html, 'wordpress.tv' ) != false ) { return '

' . $html . '

'; } else { return $html; } }