Accessibility on dom

 <ul class="topics" id="yui_3_17_2_1_1502803583427_77"><li id="section-0" class="section main clearfix state-visible" role="article" aria-label="Welcome" tabindex="-1"><div class="content" id="yui_3_17_2_1_1502803583427_76"><h2 class="sectionname" id="yui_3_17_2_1_1502803583427_75">Welcome</h2><span class="snap-current-tag">Current</span><div class="snap-draft-tag">Not published to students</div><div class="summary" id="yui_3_17_2_1_1502803583427_81"><div class="no-overflow" id="yui_3_17_2_1_1502803583427_80">Welcome to Basic Moodle<br><br><br>Have a great day.<br><p id="yui_3_17_2_1_1502803583427_82"><br></p></div></div><ul class="section img-text"><li data-href="https://accessibility-sandbox.mrooms.net/mod/hsuforum/view.php?id=81" data-type="Moodlerooms Forum" class="snap-activity snap-asset activity hsuforum modtype_hsuforum " id="module-81" data-modcontext="133"><div class="asset-wrapper"><div class="activityinstance"><div class="snap-assettype">Moodlerooms Forum</div><h4 class="snap-asset-link"><a href="https://accessibility-sandbox.mrooms.net/mod/hsuforum/view.php?id=81"><img class="iconlarge activityicon" alt="" role="presentation" src="https://accessibility-sandbox.mrooms.net/theme/image.php/snap/hsuforum/1502266427/icon"><span class="instancename">Announcements</span></a></h4><div class="snap-asset-meta" data-cmid="81"><div class="snap-draft-tag">Not published to students</div></div><div class="snap-asset-completion-tracking"></div></div></div></li><li class="snap-drop asset-drop"><div class="asset-wrapper"><a href="#">Move here</a></div></li><li class="snap-drop asset-drop"><div class="asset-wrapper"><a href="#">Move here</a></div></li></ul><nav class="section_footer"><a class="next_section " href="#section-1"><div class="nav_icon"><i class="icon-arrow-right"></i></div><span class="text"><span class="nav_guide">Next section</span><br>Asynchronous Activities</span></a></nav></div></li><li id="section-1" class="section main clearfix" role="article" aria-label="Asynchronous Activities"