diff --git a/src/wp-content/themes/twentysixteen/css/editor-blocks.css b/src/wp-content/themes/twentysixteen/css/editor-blocks.css
index e16c318fae434..dcf347f15f706 100644
--- a/src/wp-content/themes/twentysixteen/css/editor-blocks.css
+++ b/src/wp-content/themes/twentysixteen/css/editor-blocks.css
@@ -349,6 +349,11 @@ figure[class*="wp-block-"] > figcaption {
 	font-style: normal;
 }
 
+.wp-block-quote__citation em,
+.wp-block-quote__citation i {
+	font-style: italic;
+}
+
 .wp-block-quote strong,
 .wp-block-quote b {
 	font-weight: 400;
diff --git a/src/wp-content/themes/twentysixteen/style.css b/src/wp-content/themes/twentysixteen/style.css
index 1fa05165775be..4f1d97da0706b 100644
--- a/src/wp-content/themes/twentysixteen/style.css
+++ b/src/wp-content/themes/twentysixteen/style.css
@@ -385,6 +385,11 @@ blockquote cite {
 	font-style: normal;
 }
 
+blockquote :where(cite) em,
+blockquote :where(cite) i {
+	font-style: italic;
+}
+
 blockquote strong,
 blockquote b {
 	font-weight: 400;