Index: wp-content/themes/twentynineteen/style-editor.css
===================================================================
--- wp-content/themes/twentynineteen/style-editor.css	(revision 57139)
+++ wp-content/themes/twentynineteen/style-editor.css	(working copy)
@@ -1614,3 +1614,7 @@
 .wp-block-post-author__avatar img {
   border-radius: 100%;
 }
+.wp-block-group  .wp-block-pullquote p,
+.wp-block-group  .wp-block-pullquote{
+    font-size: inherit;
+}
\ No newline at end of file
Index: wp-content/themes/twentynineteen/style-rtl.css
===================================================================
--- wp-content/themes/twentynineteen/style-rtl.css	(revision 57139)
+++ wp-content/themes/twentynineteen/style-rtl.css	(working copy)
@@ -6608,3 +6608,7 @@
 .gallery-item > div > a:focus {
   box-shadow: 0 0 0 2px #0073aa;
 }
+.entry .entry-content .wp-block-group  .wp-block-pullquote p,
+.entry .entry-content .wp-block-group  .wp-block-pullquote{
+    font-size: inherit;
+}
\ No newline at end of file
Index: wp-content/themes/twentynineteen/style.css
===================================================================
--- wp-content/themes/twentynineteen/style.css	(revision 57139)
+++ wp-content/themes/twentynineteen/style.css	(working copy)
@@ -6620,3 +6620,7 @@
 .gallery-item > div > a:focus {
   box-shadow: 0 0 0 2px #0073aa;
 }
+.entry .entry-content .wp-block-group  .wp-block-pullquote p,
+.entry .entry-content .wp-block-group  .wp-block-pullquote{
+    font-size: inherit;
+}
\ No newline at end of file