Align action buttons with the rest of plugin info

Change-Id: I5c1b8c72605ec4bee463e743254795dc6a003dbe
diff --git a/src/main/resources/static/css/style.css b/src/main/resources/static/css/style.css
index ddcd2b2..f74c1e1 100644
--- a/src/main/resources/static/css/style.css
+++ b/src/main/resources/static/css/style.css
@@ -24,6 +24,10 @@
   width: 65px;
 }
 
+button.btn-sm {
+  width: 83px;
+}
+
 .label-success {
   background-color: #888888;
 }
diff --git a/src/main/resources/static/index.html b/src/main/resources/static/index.html
index a1032aa..2a3cbbd 100644
--- a/src/main/resources/static/index.html
+++ b/src/main/resources/static/index.html
@@ -52,7 +52,7 @@
               </div>
             </td>
             <td>
-              <h5>
+              <h4>
                 <span id="installing-{{prop.id}}"
                   class="label label-default hidden">Installing</span>
                 <span
@@ -61,12 +61,12 @@
                 <span
                   id="failed-{{prop.id}}" class="label label-warning hidden">Failed</span>
                 <button id="{{prop.id}}" type="button"
-                  class="btn btn-xs btn-primary {{ (prop.version == '' && prop.update_version != undefined) ? '':'hidden' }}"
+                  class="btn btn-sm btn-primary {{ (prop.version == '' && prop.update_version != undefined) ? '':'hidden' }}"
                   ng-click="install(prop.id,prop.url)">Install</button>
                 <button id="{{prop.id}}" type="button"
-                  class="btn btn-xs btn-primary {{ (prop.version != '' && prop.update_version != '') ? '':'hidden' }}"
+                  class="btn btn-sm btn-primary {{ (prop.version != '' && prop.update_version != '') ? '':'hidden' }}"
                   ng-click="install(prop.id,prop.url)">Upgrade</button>
-              </h5>
+              </h4>
             </td>
           </tr>
         </tbody>