Ticket #21082: 21082.3.diff

src/wp-includes/media.php

@@ -1492 +1492 @@
         $itemwidth = $columns > 0 ? floor(100/$columns) : 100;
         $float = is_rtl() ? 'right' : 'left';
 
-        $selector = "gallery-{$instance}";
+        $selector = "gallery-{$id}-{$instance}";
 
         $gallery_style = '';
 
@@ -1505 +1505 @@
          *                    Defaults to false if the theme supports HTML5 galleries.
          *                    Otherwise, defaults to true.
          */
+
         if ( apply_filters( 'use_default_gallery_style', ! $html5 ) ) {
                 $gallery_style = "
                 <style type='text/css'>
-                        #{$selector} {
+                        #{$selector} .gallery-item {
                                 margin: auto;
                         }
-                        #{$selector} .gallery-item {
+                        .gallery .gallery-item {
                                 float: {$float};
                                 margin-top: 10px;
                                 text-align: center;
                                 width: {$itemwidth}%;
                         }
-                        #{$selector} img {
+                        .gallery img {
                                 border: 2px solid #cfcfcf;
                         }
-                        #{$selector} .gallery-caption {
+                        .gallery .gallery-caption {
                                 margin-left: 0;
                         }
                         /* see gallery_shortcode() in wp-includes/media.php */