Main editor: maintain the height when switching Visual to Text and back, save the height when resizing as user state, output the height in the textarea tag when loading, (thanks @nacin for the help), fixes #21718

git-svn-id: https://develop.svn.wordpress.org/trunk@22007 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/css/editor.css

@@ -1018,12 +1018,18 @@
 }
 
 /* WP specific */
+.wp-editor-wrap {
+	position: relative;
+}
+
 .wp-editor-area {
 	font-family: Consolas, Monaco, monospace;
 	padding: 10px;
+	margin: 1px 0 0;
 	line-height: 150%;
 	border: 0 none;
 	outline: none;
+	display: block;
 	resize: vertical;
 	-moz-box-sizing: border-box;
 	-webkit-box-sizing: border-box;