MDL-43211 blocks: style edit icons in main menu and social activities

blocks/site_main_menu/styles.css

 .block_site_main_menu li { clear: both; }
 .block_site_main_menu li .column { width: 100%; }
-.block_site_main_menu li .buttons { float: right; margin-top: 3px;}
+.block_site_main_menu li .buttons { float: right; margin: 0; }
 .dir-rtl .block_site_main_menu li .buttons { float: left; }
-.block_site_main_menu li .buttons a img{ vertical-align: text-bottom; margin: 0 3px;}
+.block_site_main_menu li .buttons a img{ vertical-align: text-bottom;}
 .block_site_main_menu .footer { margin-top: 1em; }
 .block_site_main_menu .section_add_menus noscript div { display: inline;}

blocks/social_activities/block_social_activities.php

@@ -91,8 +91,10 @@ class block_social_activities extends block_list {
                 }
                 if (!$ismoving) {
                     $actions = course_get_cm_edit_actions($mod, -1);
-                    $editbuttons = '<br />'.
-                            $courserenderer->course_section_cm_edit_actions($actions, $mod);
+                    $editbuttons = html_writer::tag('div',
+                        $courserenderer->course_section_cm_edit_actions($actions, $mod, array('donotenhance' => true)),
+                        array('class' => 'buttons')
+                    );
                 } else {
                     $editbuttons = '';
                 }

blocks/social_activities/styles.css

+.block_social_activities li { clear: both; }
+.block_social_activities li .column { width: 100%; }
+.block_social_activities li .buttons { float: right; margin: 0; }
+.dir-rtl .block_social_activities li .buttons { float: left; }
+.block_social_activities li .buttons a img{ vertical-align: text-bottom;}