Accessibility fixes

- Add tab index order to navigation.
- Minor CSS changes.

Change-Id: I402d3cb8c1ac14bd930a5efcf472c1d249cfe00a
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/app/common/directives/log-event.html b/app/common/directives/log-event.html
index bf2cc1f..70d7dee 100644
--- a/app/common/directives/log-event.html
+++ b/app/common/directives/log-event.html
@@ -15,7 +15,7 @@
              <label class="control-check">
                  <input type="checkbox" name="events__check" ng-click="event.selected= ! event.selected"
                         ng-checked="event.selected"/>
-                 <span class="control__indicator"></span>
+                 <div class="control__indicator"></div>
              </label>
          </div>
          <div class="column small-9 large-9 event-log__event-info"