Twenty Seventeen: Fix double bottom-margins below embeds

Corrects an issue where both the containing paragraph and embed had bottom margins, causing unwanted extra space.

Props westonruter.

Fixes #42118.

Built from https://develop.svn.wordpress.org/trunk@41888


git-svn-id: http://core.svn.wordpress.org/trunk@41722 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-content/themes/twentyseventeen/style.css

@@ -2820,6 +2820,14 @@ object {
 	max-width: 100%;
 }
 
+/* Remove bottom on embeds that wrapped in paragraphs via wpautop. */
+
+p > embed:only-child,
+p > iframe:only-child,
+p > object:only-child {
+	margin-bottom: 0;
+}
+
 .wp-caption,
 .gallery-caption {
 	color: #666;

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-beta2-41887';
+$wp_version = '4.9-beta2-41888';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.