Ticket #56443: 56443.patch

wp-content/themes/twentynineteen/sass/blocks/_blocks.scss

@@ -169 +169 @@
                 .wp-block-button__link {
                         @include button-transition;
                         border: none;
-                        font-size: $font__size-sm;
+                        font-size: inherit;
                         @include font-family( $font__heading );
                         line-height: $font__line-height-heading;
                         box-sizing: border-box;

wp-content/themes/twentynineteen/style-rtl.css

@@ -5484 +5484 @@
 .entry .entry-content .wp-block-button .wp-block-button__link {
   transition: background 150ms ease-in-out;
   border: none;
-  font-size: 0.88889em;
+  font-size: inherit;
   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
   line-height: 1.2;
   box-sizing: border-box;

wp-content/themes/twentynineteen/style.css

@@ -5496 +5496 @@
 .entry .entry-content .wp-block-button .wp-block-button__link {
   transition: background 150ms ease-in-out;
   border: none;
-  font-size: 0.88889em;
+  font-size: inherit;
   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
   line-height: 1.2;
   box-sizing: border-box;