Editor scrolling:

- Improve TinyMCE resizing when a floated block is at the end of the content.
- Improve setting the padding/margin under the toolbar on loading.
- Add custom event on TinyMCE resizing and use it to adjust the pinning (if needed).
Part props avryl, see #28328.

git-svn-id: https://develop.svn.wordpress.org/trunk@29279 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/css/edit.css

@@ -378,6 +378,24 @@ td.plugin-title p {
 	overflow: hidden;
 }
 
+.wp-fullscreen-wrap #content-textarea-clone {
+	display: none;
+}
+
+/* editor-expand.js override */
+.wp-fullscreen-wrap {
+	padding-top: 0 !important;
+}
+
+.wp-fullscreen-wrap .wp-editor-area {
+	margin-top: 0 !important;
+}
+
+.wp-fullscreen-wrap .mce-edit-area {
+	padding-top: 0 !important;
+}
+/* end editor-expand.js override */
+
 #timestampdiv select {
 	height: 21px;
 	line-height: 14px;