core/modules/filter/css/filter.caption.css |    1 +
 1 file changed, 1 insertion(+)

diff --git a/core/modules/filter/css/filter.caption.css b/core/modules/filter/css/filter.caption.css
index 6358800..0b3d8e5 100644
--- a/core/modules/filter/css/filter.caption.css
+++ b/core/modules/filter/css/filter.caption.css
@@ -27,6 +27,7 @@
  */
 .caption > figcaption[contenteditable=true]:empty:before {
   content: attr(data-placeholder);
+  font-style: italic;
 }
 
 /**