AC-588: Fixed header levels,removed unneccessary element

lms/static/sass/course/_info.scss

@@ -48,7 +48,7 @@ div.info-wrapper {
     width: 100%;
     display: block;
 
-    h1 {
+    h1,h3 {
       @include text-align(left);
       @extend %t-strong;
       @extend %t-title6;
@@ -60,7 +60,7 @@ div.info-wrapper {
       margin-bottom: lh();
     }
 
-    > ol,section {
+    > ol,section,div {
       list-style: none;
       margin-bottom: lh();
       padding-left: 0;
@@ -104,7 +104,7 @@ div.info-wrapper {
           }
         }
 
-        h2.date {
+        .date {
           @extend %t-title9;
           margin-bottom: ($baseline/4);
           text-transform: none;
@@ -112,6 +112,7 @@ div.info-wrapper {
           @include padding-left($baseline);
           @include float(left);
         }
+      
 
         .toggle-visibility-button {
           @extend %t-title9;

lms/templates/courseware/course_updates.html

 <%! from django.utils.translation import ugettext as _ %>
-<section aria-labelledby="course-updates-heading">
-    <h2 class="hd hd-2 sr" id="course-updates-heading">${_('All course updates')}</h2>
+<div>
 <div class="recent-updates">
   % for index, update in enumerate(visible_updates):
     <article class="updates-article">
       % if not update.get("is_error"):
-        <h2 class="date" id="msg-date-${index}">${update.get("date")}</h2>
+        <div class="date" id="msg-date-${index}">${update.get("date")}</div>      
         <button
             class="toggle-visibility-button"
             data-hide="${_('Hide')}"
@@ -16,7 +15,7 @@
         ></button>
       % endif
       <div class="toggle-visibility-element article-content ${'hidden' if index >= 1 else ''}" id="msg-content-${index}">
-        ${update.get("content")}
+      ${update.get("content")}
       </div>
     </article>
   % endfor
@@ -35,7 +34,7 @@
 <div class="old-updates hidden toggle-visibility-element" id="old-updates">
   % for index, update in enumerate(hidden_updates):
     <article class="updates-article">
-      <h2 class="date" id="msg-date-${index + len(visible_updates)}">${update.get("date")}</h2>
+      <div class="date" id="msg-date-${index + len(visible_updates)}">${update.get("date")}</div>
       <button
           class="toggle-visibility-button"
           data-hide="${_('Hide')}"
@@ -48,4 +47,4 @@
     </article>
   % endfor
 </div>
-</section>
+<div>

lms/templates/courseware/info.html

@@ -60,8 +60,9 @@ from openedx.core.djangolib.markup import HTML, Text
     <div class="container">
       <div class="home">
         <div class="page-header-main">
-            <h1 class="page-title">${_("Welcome to {org}'s {course_name}!").format(org=course.display_org_with_default, course_name=course.display_number_with_default)}</h1>
-            <h2 class="page-subtitle">${course.display_name_with_default}</h2>
+            <h3 class="page-title">${_("Welcome to {org}'s {course_name}!").format(org=course.display_org_with_default, course_name=course.display_number_with_default)}
+            <div class="page-subtitle">${course.display_name_with_default}</div>
+            </h3>
         </div>
         % if last_accessed_courseware_url:
           <div class="page-header-secondary">
@@ -80,7 +81,7 @@ from openedx.core.djangolib.markup import HTML, Text
           </div>
           % endif
 
-          <h1>${_("Course Updates and News")}</h1>
+          <h4>${_("Course Updates and News")}</h4>
           ${HTML(get_course_info_section(request, masquerade_user, course, 'updates'))}
 
           ## CourseTalk widget
@@ -93,7 +94,7 @@ from openedx.core.djangolib.markup import HTML, Text
         <section aria-label="${_('Handout Navigation')}" class="handouts">
 
       % if SelfPacedConfiguration.current().enable_course_home_improvements:
-            <h1 class="handouts-header">${_("Important Course Dates")}</h1>
+            <h4 class="handouts-header">${_("Important Course Dates")}</h1>
             ## Should be organized by date, last date appearing at the bottom
 
             % for course_date in get_course_date_blocks(course, user):