app/views/student_task/_timeline.html.erb
<link rel = "stylesheet" type="text/css" href = "/assets/timeline.scss">
<div class = "scrollable">
<ul class = "timeline" id = "timeline">
<% @timeline_list.each do |tl| %>
<% if tl[:updated_at] > Time.now %><li class = "li"><% else %><li class = "li complete"><% end %>
<div class = "timestamp">
<p><%= tl[:updated_at] %></p>
</div>
<div class = "status">
<% if tl[:id] %><p><%= link_to tl[:label], controller: 'response', action: 'view', id: tl[:id], target: '_blank' %></p> <!--peer review-->
<% elsif tl[:link] %><p><%= link_to tl[:label], tl[:link] %></p> <!--submitted hyperlinks-->
<% else %><p><%= tl[:label] %></p> <!--due dates-->
<% end %>
</div>
</li>
<% end %>
</ul>
</div>