Index: src/wp-content/themes/twentysixteen/css/editor-style.css
===================================================================
--- src/wp-content/themes/twentysixteen/css/editor-style.css	(revision 58225)
+++ src/wp-content/themes/twentysixteen/css/editor-style.css	(working copy)
@@ -185,7 +185,7 @@
 	line-height: 1.3125;
 	margin: 0 0 28px;
 	overflow: auto;
-	padding: 14px;
+	padding: 1.75em;
 	white-space: pre;
 	white-space: pre-wrap;
 	word-wrap: break-word;