Make it more obvious conferences are clickable

app/views/conferences/index.html.erb

@@ -2,7 +2,7 @@
 <h1 class="text-xl my-4">Conferences</h1>
 <ul>
 <% @conferences.each do |conference| %>
-<li><%= link_to conference.name, conference_path(conference.slug), class: "inline-block px-4 py-2" %></li>
+<li><%= link_to conference.name, conference_path(conference.slug), class: "inline-block px-4 py-2 text-slate-500 hover:text-slate-900 hover:bg-slate-100 rounded-md" %></li>
 <% end %>
 </ul>
 </div>