- <li><%= link_to t('layouts.gps_traces'), traces_path %></li>
- <li><%= link_to t('layouts.user_diaries'), diary_path %></li>
- <li><%= link_to t('layouts.help'), help_path %></li>
- <li><%= link_to t('layouts.about'), about_path %></li>
+ <li class="<%= current_page_class(traces_path) %>"><%= link_to t('layouts.gps_traces'), traces_path %></li>
+ <li class="<%= current_page_class(diary_path) %>"><%= link_to t('layouts.user_diaries'), diary_path %></li>
+ <li class="<%= current_page_class(help_path) %>"><%= link_to t('layouts.help'), help_path %></li>
+ <li class="<%= current_page_class(about_path) %>"><%= link_to t('layouts.about'), about_path %></li>