WIP attempt to get sticky headers

css/customize-controls-sticky-headers.css

@@ -0,0 +1,28 @@
+
+/*.accordion-sub-container.control-panel-content,*/
+/*.accordion-section-content {*/
+	/*padding-top: 75px !important;*/
+/*}*/
+
+/*.accordion-sub-container.control-panel-content > .panel-meta.customize-info.accordion-section,*/
+/*.accordion-section-content > .customize-section-description-container {*/
+	/*position: fixed;*/
+	/*top: 58px;*/
+	/*z-index: 10000;*/
+	/*width: 228px;*/
+/*}*/
+
+.control-panel > .accordion-sub-container.control-panel-content {
+	padding-top: 
+}
+
+.accordion-section-content > .customize-section-description-container {
+	height: 58px;
+}
+
+.accordion-section-content > .customize-section-description-container > .customize-section-title {
+	position: fixed;
+	top: 58px;
+	z-index: 100000;
+	width: 300px;
+}

php/class-customize-posts-plugin.php

@@ -295,6 +295,12 @@ public function register_styles( WP_Styles $wp_styles ) {
 		$version = $this->version;
 		$wp_styles->add( $handle, $src, $deps, $version );
 
+		$handle = 'customize-controls-sticky-headers';
+		$src = plugins_url( 'css/customize-controls-sticky-headers' . $suffix, dirname( __FILE__ ) );
+		$deps = array( 'customize-controls' );
+		$version = $this->version;
+		$wp_styles->add( $handle, $src, $deps, $version );
+
 		$handle = 'edit-post-preview-customize';
 		$src = plugins_url( 'css/edit-post-preview-customize' . $suffix, dirname( __FILE__ ) );
 		$deps = array( 'customize-controls' );

php/class-wp-customize-posts.php

@@ -548,6 +548,7 @@ public function filter_customize_save_response_to_export_saved_values( $response
 	public function enqueue_scripts() {
 		wp_enqueue_script( 'customize-posts' );
 		wp_enqueue_style( 'customize-posts' );
+		wp_enqueue_style( 'customize-controls-sticky-headers' );
 
 		$post_types = array();
 		foreach ( $this->get_post_types() as $post_type => $post_type_obj ) {