diff --git a/openslides/agenda/static/templates/agenda/item-detail.html b/openslides/agenda/static/templates/agenda/item-detail.html
index a8832738a..9e7a7920e 100644
--- a/openslides/agenda/static/templates/agenda/item-detail.html
+++ b/openslides/agenda/static/templates/agenda/item-detail.html
@@ -170,11 +170,11 @@
       <select>
     </div>
     <p class="spacer">
-      <button ng-if="isAllowed('add')" ng-click="addSpeaker()" class="btn btn-default">
+      <button ng-if="isAllowed('add')" ng-click="addSpeaker()" class="btn btn-default btn-sm">
         <i class="fa fa-plus"></i>
         <translate>Add me</translate>
       </button>
-      <button ng-if="isAllowed('remove')" ng-click="removeSpeaker()" class="btn btn-default">
+      <button ng-if="isAllowed('remove')" ng-click="removeSpeaker()" class="btn btn-default btn-sm">
         <i class="fa fa-minus"></i>
         <translate>Remove me</translate>
       </button>
diff --git a/openslides/agenda/static/templates/agenda/item-list.html b/openslides/agenda/static/templates/agenda/item-list.html
index 674cda7ca..0f44ecc14 100644
--- a/openslides/agenda/static/templates/agenda/item-list.html
+++ b/openslides/agenda/static/templates/agenda/item-list.html
@@ -85,7 +85,7 @@
       </button>
       <!-- pdf -->
       <div class="pull-right" uib-dropdown>
-        <button type="button" class="btn btn-default" id="dropdownExport" uib-dropdown-toggle>
+        <button type="button" class="btn btn-default btn-sm" id="dropdownExport" uib-dropdown-toggle>
           <i class="fa fa-upload"></i>
           <span ng-if="itemsFiltered.length == items.length" translate>
             Export all
@@ -99,7 +99,7 @@
           <!-- PDF export -->
           <li>
             <a href="" ng-click="pdfExport()">
-              <i class="fa fa-file-pdf-o fa-lg"></i>
+              <i class="fa fa-file-pdf-o"></i>
               PDF
             </a>
           </li>
@@ -107,7 +107,7 @@
           <li>
             <a href="" id="downloadLinkCSV"
               ng-click="csvExport()">
-              <i class="fa fa-file-text-o fa-lg"></i>
+              <i class="fa fa-file-text-o"></i>
               CSV
             </a>
           </li>
@@ -121,7 +121,7 @@
       <a ng-show="isSelectMode" os-perms="agenda.can_manage"
         ng-bootbox-confirm="{{ 'Are you sure you want to delete all selected agenda items?' | translate }}"
         ng-bootbox-confirm-action="deleteMultiple()"
-        class="btn btn-primary">
+        class="btn btn-default btn-sm">
         <i class="fa fa-trash fa-lg"></i>
         <translate>Delete selected items</translate>
       </a>
diff --git a/openslides/agenda/static/templates/agenda/item-sort.html b/openslides/agenda/static/templates/agenda/item-sort.html
index c320702b3..81387a137 100644
--- a/openslides/agenda/static/templates/agenda/item-sort.html
+++ b/openslides/agenda/static/templates/agenda/item-sort.html
@@ -11,7 +11,7 @@
 </div>
 
 <div class="details">
-  <p class="lead" translate>Drag and drop items to change the order of the agenda. Your modification will be saved immediately.</p>
+  <p translate>Drag and drop items to change the order of the agenda. Your modification will be saved immediately.</p>
 
   <div ui-tree="treeOptions" id="tree-root">
     <ol ui-tree-nodes ng-model="items">
diff --git a/openslides/assignments/static/templates/assignments/assignment-detail.html b/openslides/assignments/static/templates/assignments/assignment-detail.html
index a6036b330..b764ce52e 100644
--- a/openslides/assignments/static/templates/assignments/assignment-detail.html
+++ b/openslides/assignments/static/templates/assignments/assignment-detail.html
@@ -110,11 +110,11 @@
         <select>
       </div>
       <p os-perms="assignments.can_nominate_self" class="spacer">
-        <button ng-if="!isCandidate()" ng-click="addMe()" class="btn btn-default">
+        <button ng-if="!isCandidate()" ng-click="addMe()" class="btn btn-default btn-sm">
           <i class="fa fa-plus"></i>
           <translate>Add me</translate>
         </button>
-        <button ng-if="isCandidate()" ng-click="removeMe()" class="btn btn-default">
+        <button ng-if="isCandidate()" ng-click="removeMe()" class="btn btn-default btn-sm">
           <i class="fa fa-minus"></i>
           <translate>Remove me</translate>
         </button>
diff --git a/openslides/assignments/static/templates/assignments/assignment-list.html b/openslides/assignments/static/templates/assignments/assignment-list.html
index 49defe248..ffb8d6ae5 100644
--- a/openslides/assignments/static/templates/assignments/assignment-list.html
+++ b/openslides/assignments/static/templates/assignments/assignment-list.html
@@ -17,8 +17,8 @@
 <div class="details">
   <div class="row form-group">
     <div class="col-sm-12">
-      <!-- delete mode -->
-      <button os-perms="assignments.can_manage" class="btn"
+      <!-- select mode -->
+      <button os-perms="assignments.can_manage" class="btn btn-sm"
           ng-class="$parent.isSelectMode ? 'btn-primary' : 'btn-default'"
           ng-click="$parent.isSelectMode = !$parent.isSelectMode; uncheckAll()">
         <i class="fa fa-check-square-o"></i>
@@ -26,7 +26,7 @@
       </button>
       <!-- export dropdown -->
       <div class="dropdown pull-right" uib-dropdown>
-        <button type="button" class="btn btn-default" id="dropdownExport" uib-dropdown-toggle>
+        <button type="button" class="btn btn-default btn-sm" id="dropdownExport" uib-dropdown-toggle>
           <i class="fa fa-upload"></i>
           <span ng-if="assignmentsFiltered.length == assignments.length" translate>
             Export all
@@ -40,7 +40,7 @@
           <!-- PDF export -->
           <li>
             <a href="" ng-click="makePDF_assignmentList()">
-              <i class="fa fa-file-pdf-o fa-lg"></i>
+              <i class="fa fa-file-pdf-o"></i>
               <translate>PDF</translate>
             </a>
           </li>
@@ -64,7 +64,7 @@
       <a ng-show="isSelectMode" os-perms="assignments.can_manage"
         ng-bootbox-confirm="{{ 'Are you sure you want to delete all selected elections?' | translate }}"
         ng-bootbox-confirm-action="deleteMultiple()"
-        class="btn btn-primary">
+        class="btn btn-default btn-sm">
         <i class="fa fa-trash fa-lg"></i>
         <translate>Delete selected elections</translate>
       </a>
diff --git a/openslides/core/static/templates/core/manage-projectors.html b/openslides/core/static/templates/core/manage-projectors.html
index f9792ef09..77661eabb 100644
--- a/openslides/core/static/templates/core/manage-projectors.html
+++ b/openslides/core/static/templates/core/manage-projectors.html
@@ -2,14 +2,14 @@
   <div class="title">
     <div class="submenu" os-perms="core.can_manage_projector">
       <!-- New -->
-      <button class="btn btn-primary" ng-bootbox-prompt="{{ 'Please enter a name for the new projector' | translate }}"
+      <button class="btn btn-primary btn-sm" ng-bootbox-prompt="{{ 'Please enter a name for the new projector' | translate }}"
         ng-bootbox-prompt-action="createProjector(result)">
         <i class="fa fa-plus"></i>
         <translate>New</translate>
       </button>
       <!-- Reference for current list of speakers -->
       <div class="btn-group" uib-dropdown>
-        <button class="btn btn-default" id="menuListofSpeakers" uib-dropdown-toggle
+        <button class="btn btn-default btn-sm" id="menuListofSpeakers" uib-dropdown-toggle
             uib-tooltip="{{ 'Select the projector to which the current list of speakers refers to.' | translate }}"
             aria-haspopup="true" aria-expanded="true">
           <i class="fa fa-microphone"></i>
@@ -26,7 +26,7 @@
         </ul>
       </div>
       <!-- Identity -->
-      <button class="btn" ng-click="identifyProjectors()" ng-class="identifyPromise ? 'btn-primary' : 'btn-default'"
+      <button class="btn btn-sm" ng-click="identifyProjectors()" ng-class="identifyPromise ? 'btn-primary' : 'btn-default'"
         uib-tooltip="{{ 'Display an identifier message on all projectors with the id and the name.' | translate }}">
         <i class="fa fa-binoculars"></i>
         <translate>Identify</translate>
@@ -186,7 +186,8 @@
           <button class="btn btn-sm" ng-class="broadcast == projector.id ? 'btn-primary' : 'btn-default'"
             ng-click="projector.toggleBroadcast(projector)"
             ng-disabled="broadcast > 0 && broadcast != projector.id"
-            uib-tooltip="{{ 'Broadcast the content of this projector to all other projectors.' | translate }}">
+            uib-tooltip="{{ 'Broadcast the content of this projector to all other projectors.' | translate }}"
+            tooltip-placement="bottom">
             <i class="fa" ng-class="broadcast == projector.id ? 'fa-star' : 'fa-star-o'"></i>
             <translate>Broadcast</translate>
           </button>
diff --git a/openslides/mediafiles/static/templates/mediafiles/mediafile-list.html b/openslides/mediafiles/static/templates/mediafiles/mediafile-list.html
index 88130695c..eefd1a54e 100644
--- a/openslides/mediafiles/static/templates/mediafiles/mediafile-list.html
+++ b/openslides/mediafiles/static/templates/mediafiles/mediafile-list.html
@@ -116,7 +116,7 @@
     <div class="col-sm-6">
       <form class="form-inline">
         <!-- select mode -->
-        <button os-perms="mediafiles.can_manage" class="btn"
+        <button os-perms="mediafiles.can_manage" class="btn btn-sm"
             ng-class="$parent.isSelectMode ? 'btn-primary' : 'btn-default'"
             ng-click="$parent.isSelectMode = !$parent.isSelectMode; uncheckAll()">
           <i class="fa fa-check-square-o"></i>
@@ -131,7 +131,7 @@
       <!-- delete button -->
       <a ng-show="isSelectMode"
           os-perms="mediafiles.can_manage" ng-click="deleteMultiple()"
-          class="btn btn-primary">
+          class="btn btn-default btn-sm">
         <i class="fa fa-trash fa-lg"></i>
         <translate>Delete selected mediafiles</translate>
       </a>
diff --git a/openslides/motions/static/templates/motions/category-sort.html b/openslides/motions/static/templates/motions/category-sort.html
index 57da8b2c0..d2b344f5b 100644
--- a/openslides/motions/static/templates/motions/category-sort.html
+++ b/openslides/motions/static/templates/motions/category-sort.html
@@ -12,7 +12,7 @@
 
 <div class="details">
   <div class="lead-div">
-    <p class="lead" translate>
+    <p translate>
       Drag and drop motions to reorder the category. Then click the button to renumber.
     </p>
     <a os-perms="motions.can_manage" class="btn btn-primary btn-sm" ng-click="numbering()">
diff --git a/openslides/motions/static/templates/motions/motion-block-detail.html b/openslides/motions/static/templates/motions/motion-block-detail.html
index e0b1921a9..4804a45b3 100644
--- a/openslides/motions/static/templates/motions/motion-block-detail.html
+++ b/openslides/motions/static/templates/motions/motion-block-detail.html
@@ -26,7 +26,7 @@
 </div>
 
 <div class="details">
-  <a os-perms="motions.can_manage" class="btn btn-default btn"
+  <a os-perms="motions.can_manage" class="btn btn-default btn btn-sm"
       ng-bootbox-confirm="{{ 'Are you sure you want to override the state of all motions of this motion block?' | translate }}"
       ng-bootbox-confirm-action="followRecommendations()">
     <i class="fa fa-magic fa-lg"></i>
diff --git a/openslides/motions/static/templates/motions/motion-import.html b/openslides/motions/static/templates/motions/motion-import.html
index 125944cc5..31a9cb325 100644
--- a/openslides/motions/static/templates/motions/motion-import.html
+++ b/openslides/motions/static/templates/motions/motion-import.html
@@ -114,15 +114,15 @@
     </div>
 
     <div class="spacer">
-      <button ng-click="clear()" class="btn btn-default" translate>
+      <button ng-click="clear()" class="btn btn-default btn-sm" translate>
         Clear preview
       </button>
-      <button ng-if="!csvImporting && motionsWillBeImported > 0" ng-click="import()" class="btn btn-primary" translate>
+      <button ng-if="!csvImporting && motionsWillBeImported > 0" ng-click="import()" class="btn btn-primary btn-sm" translate>
         Import {{ motionsWillBeImported }} motions
       </button>
     </div>
     <div class="spacer">
-      <a ng-if="csvimported" ui-sref="motions.motion.list" class="btn btn-default">
+      <a ng-if="csvimported" ui-sref="motions.motion.list" class="btn btn-default btn-sm">
         <i class="fa fa-angle-double-left fa-lg"></i>
         <translate>Back to motions overview</translate>
       </a>
diff --git a/openslides/motions/static/templates/motions/motion-list.html b/openslides/motions/static/templates/motions/motion-list.html
index f64e025d6..5920b51f8 100644
--- a/openslides/motions/static/templates/motions/motion-list.html
+++ b/openslides/motions/static/templates/motions/motion-list.html
@@ -30,7 +30,7 @@
   <div class="row">
     <div class="col-sm-12">
       <!-- select mode -->
-      <button os-perms="motions.can_manage" class="btn"
+      <button os-perms="motions.can_manage" class="btn btn-sm"
           ng-class="$parent.isSelectMode ? 'btn-primary' : 'btn-default'"
           ng-click="$parent.isSelectMode = !$parent.isSelectMode; uncheckAll()">
         <i class="fa fa-check-square-o"></i>
@@ -38,7 +38,7 @@
       </button>
       <!-- Export dropdown -->
       <div class="dropdown pull-right" uib-dropdown>
-        <button type="button" class="btn btn-default" id="dropdownExport" uib-dropdown-toggle>
+        <button type="button" class="btn btn-default btn-sm" id="dropdownExport" uib-dropdown-toggle>
           <i class="fa fa-upload"></i>
           <span ng-if="motionsFiltered.length == motions.length" translate>
             Export all
@@ -52,7 +52,7 @@
           <!-- PDF export -->
           <li>
             <a href="" ng-click="pdfExport()">
-              <i class="fa fa-file-pdf-o fa-lg"></i>
+              <i class="fa fa-file-pdf-o"></i>
               PDF
             </a>
           </li>
@@ -60,14 +60,14 @@
           <li>
             <a href="" id="downloadLinkCSV"
               ng-click="csvExport()">
-              <i class="fa fa-file-text-o fa-lg"></i>
+              <i class="fa fa-file-text-o"></i>
               CSV
             </a>
           </li>
           <!-- DOCX export -->
           <li>
             <a href="" ng-click="docxExport()">
-              <i class="fa fa-file-word-o fa-lg"></i>
+              <i class="fa fa-file-word-o"></i>
               DOCX
             </a>
           </li>
@@ -79,7 +79,7 @@
   <div uib-collapse="!isSelectMode" class="row spacer">
     <div class="col-sm-12 text-left form-inline" ng-show="isSelectMode" os-perms="motions.can_manage">
       <!-- actions -->
-      <select ng-model="selectedAction" class="form-control">
+      <select ng-model="selectedAction" class="form-control input-sm">
         <option value="" translate>--- Select action ---</option>
         <option value="delete" translate>Delete</option>
         <option value="setStatus" translate>Set status</option>
@@ -87,7 +87,7 @@
         <option value="setMotionBlock" ng-if="motionBlocks.length" translate>Set motion block</option>
       </select>
       <!-- state select -->
-      <select ng-show="selectedAction == 'setStatus'" ng-model="selectedState" class="form-control">
+      <select ng-show="selectedAction == 'setStatus'" ng-model="selectedState" class="form-control input-sm">
         <option value="" translate>--- Select state ---</option>
         <option ng-repeat="state in states" ng-disabled="state.workflowHeader" value="{{ state.id }}">
           {{ (state.workflowHeader ? state.headername : state.name) | translate }}
@@ -95,11 +95,11 @@
       </select>
       <!-- set state button -->
       <a ng-show="selectedAction == 'setStatus' && selectedState"
-          ng-click="setStatusMultiple(selectedState)" class="btn btn-default">
+          ng-click="setStatusMultiple(selectedState)" class="btn btn-default btn-sm">
         <translate>Set status</translate>
       </a>
       <!-- category select -->
-      <select ng-show="selectedAction == 'setCategory'" ng-model="selectedCategory" class="form-control">
+      <select ng-show="selectedAction == 'setCategory'" ng-model="selectedCategory" class="form-control input-sm">
         <option value="" translate>--- Select category ---</option>
         <option ng-repeat="category in categories" value="{{ category.id }}">
           {{ category.name }}
@@ -108,11 +108,11 @@
       </select>
       <!-- set category button -->
       <a ng-show="selectedAction == 'setCategory' && selectedCategory"
-          ng-click="setCategoryMultiple(selectedCategory)" class="btn btn-default">
+          ng-click="setCategoryMultiple(selectedCategory)" class="btn btn-default btn-sm">
         <translate>Set category</translate>
       </a>
       <!-- motionBlock select -->
-      <select ng-show="selectedAction == 'setMotionBlock'" ng-model="selectedMotionBlock" class="form-control">
+      <select ng-show="selectedAction == 'setMotionBlock'" ng-model="selectedMotionBlock" class="form-control input-sm">
         <option value="" translate>--- Select motion block ---</option>
         <option ng-repeat="motionBlock in motionBlocks" value="{{ motionBlock.id }}">
           {{ motionBlock.title }}
@@ -121,14 +121,14 @@
       </select>
       <!-- set motion block button -->
       <a ng-show="selectedAction == 'setMotionBlock' && selectedMotionBlock"
-         ng-click="setMotionBlockMultiple(selectedMotionBlock)" class="btn btn-default">
+         ng-click="setMotionBlockMultiple(selectedMotionBlock)" class="btn btn-default btn-sm">
         <translate>Set motion block</translate>
       </a>
       <!-- delete button -->
       <a ng-show="selectedAction == 'delete'"
         ng-bootbox-confirm="{{ 'Are you sure you want to delete all selected motions?' | translate }}"
         ng-bootbox-confirm-action="deleteMultiple()"
-        class="btn btn-danger">
+        class="btn btn-default btn-sm">
         <i class="fa fa-trash fa-lg"></i>
         <translate>Delete selected motions</translate>
       </a>
diff --git a/openslides/topics/static/templates/topics/topic-import.html b/openslides/topics/static/templates/topics/topic-import.html
index 1b6d29a56..0e851a982 100644
--- a/openslides/topics/static/templates/topics/topic-import.html
+++ b/openslides/topics/static/templates/topics/topic-import.html
@@ -21,7 +21,7 @@
 </div>
 
 <div class="clearfix">
-  <button ng-click="importByLine()" class="btn btn-primary pull-left" translate>Import</button>
+  <button ng-click="importByLine()" class="btn btn-primary btn-sm pull-left" translate>Import</button>
   <div class="col-xs-5" ng-if="titleItems">
     <progressbar animate="false" type="success" max="titleItems.length" value="importcounter">
       <i>{{ importcounter }} / {{ titleItems.length }} {{ "imported" | translate }}</i>
@@ -30,7 +30,7 @@
 </div>
 <div class="spacer">
   <a ng-if="importcounter > 0 && importcounter == titleItems.length" ui-sref="agenda.item.list"
-      class="btn btn-default">
+      class="btn btn-default btn-sm">
     <i class="fa fa-angle-double-left fa-lg"></i>
     <translate>Back to agenda</translate>
   </a>
@@ -117,15 +117,15 @@
     </div>
 
     <div class="spacer">
-      <button ng-click="clear()" class="btn btn-default" translate>
+      <button ng-click="clear()" class="btn btn-default btn-sm" translate>
         Clear preview
       </button>
-      <button ng-if="!csvImporting && itemsWillBeImported > 0" ng-click="import()" class="btn btn-primary" translate>
+      <button ng-if="!csvImporting && itemsWillBeImported > 0" ng-click="import()" class="btn btn-primary btn-sm" translate>
         Import {{ itemsWillBeImported }} topics
       </button>
     </div>
     <div class="spacer">
-      <a ng-if="csvimported" ui-sref="agenda.item.list" class="btn btn-default">
+      <a ng-if="csvimported" ui-sref="agenda.item.list" class="btn btn-default btn-sm">
         <i class="fa fa-angle-double-left fa-lg"></i>
         <translate>Back to agenda</translate>
       </a>
diff --git a/openslides/users/static/templates/users/user-change-password.html b/openslides/users/static/templates/users/user-change-password.html
index 69c973236..01705c476 100644
--- a/openslides/users/static/templates/users/user-change-password.html
+++ b/openslides/users/static/templates/users/user-change-password.html
@@ -40,10 +40,10 @@
         </span>
       </div>
     </div>
-    <button type="submit" ng-click="save(user)" class="btn btn-primary" translate>
+    <button type="submit" ng-click="save(user)" class="btn btn-primary btn-sm" translate>
       Change password
     </button>
-    <button ui-sref="users.user.list" class="btn btn-default" translate>
+    <button ui-sref="users.user.list" class="btn btn-default btn-sm" translate>
       Cancel
     </button>
   </form>
diff --git a/openslides/users/static/templates/users/user-import.html b/openslides/users/static/templates/users/user-import.html
index 61ad1c841..6d7d71b19 100644
--- a/openslides/users/static/templates/users/user-import.html
+++ b/openslides/users/static/templates/users/user-import.html
@@ -22,7 +22,7 @@
   </div>
 
   <div class="clearfix">
-    <button ng-click="importByLine()" class="btn btn-primary pull-left" translate>Import</button>
+    <button ng-click="importByLine()" class="btn btn-primary btn-sm pull-left" translate>Import</button>
     <div class="col-xs-5" ng-if="usernames">
       <progressbar animate="false" type="success" max="usernames.length" value="importcounter">
         <i>{{ importcounter }} / {{ usernames.length }} {{ "imported" | translate }}</i>
@@ -31,7 +31,7 @@
   </div>
   <div class="spacer">
     <a ng-if="importcounter > 0 && importcounter == usernames.length" ui-sref="users.user.list"
-        class="btn btn-default">
+        class="btn btn-default btn-sm">
       <i class="fa fa-angle-double-left fa-lg"></i>
       <translate>Back to users overview</translate>
     </a>
@@ -205,15 +205,15 @@
     </div>
 
     <div class="spacer">
-      <button ng-click="clear()" class="btn btn-default" translate>
+      <button ng-click="clear()" class="btn btn-default btn-sm" translate>
         Clear preview
       </button>
-      <button ng-if="!csvImporting && usersWillBeImported > 0" ng-click="import()" class="btn btn-primary" translate>
+      <button ng-if="!csvImporting && usersWillBeImported > 0" ng-click="import()" class="btn btn-primary btn-sm" translate>
         Import {{ usersWillBeImported }} participants
       </button>
     </div>
     <div class="spacer">
-      <a ng-if="csvimported" ui-sref="users.user.list" class="btn btn-default">
+      <a ng-if="csvimported" ui-sref="users.user.list" class="btn btn-default btn-sm">
         <i class="fa fa-angle-double-left fa-lg"></i>
         <translate>Back to users overview</translate>
       </a>
diff --git a/openslides/users/static/templates/users/user-list.html b/openslides/users/static/templates/users/user-list.html
index f20ca790e..7baf1bd03 100644
--- a/openslides/users/static/templates/users/user-list.html
+++ b/openslides/users/static/templates/users/user-list.html
@@ -22,7 +22,7 @@
   <div class="row">
     <div class="col-sm-6">
       <!-- select mode -->
-      <button os-perms="users.can_manage" class="btn"
+      <button os-perms="users.can_manage" class="btn btn-sm"
           ng-class="$parent.isSelectMode ? 'btn-primary' : 'btn-default'"
           ng-click="$parent.isSelectMode = !$parent.isSelectMode; uncheckAll()">
         <i class="fa fa-check-square-o"></i>
@@ -31,7 +31,7 @@
     </div>
     <div class="col-sm-6">
       <div class="dropdown pull-right" uib-dropdown>
-        <button os-perms="users.can_manage" class="btn btn-default" uib-dropdown-toggle
+        <button os-perms="users.can_manage" class="btn btn-default btn-sm" uib-dropdown-toggle
             id="user-pdf-dropdown">
           <i class="fa fa-upload"></i>
           <span ng-if="usersFiltered.length == users.length" translate>
@@ -65,7 +65,7 @@
   <div uib-collapse="!isSelectMode" class="row spacer">
     <div os-perms="users.can_manage" ng-show="isSelectMode" class="col-sm-12 text-left form-inline">
       <!-- actions -->
-      <select ng-model="selectedAction" class="form-control">
+      <select ng-model="selectedAction" class="form-control input-sm">
         <option value="" translate>--- Select action ---</option>
         <option value="delete" translate>Delete</option>
         <option value="addGroup" translate>Add group</option>
@@ -79,44 +79,46 @@
       <a ng-show="selectedAction == 'delete'"
         ng-bootbox-confirm="{{ 'Are you sure you want to delete all selected users?' | translate }}"
         ng-bootbox-confirm-action="deleteMultiple()"
-        class="btn btn-default">
+        class="btn btn-default btn-sm">
         <i class="fa fa-trash fa-lg"></i>
         <translate>Delete selected participants</translate>
       </a>
       <!-- group select -->
       <select ng-show="selectedAction == 'addGroup' || selectedAction == 'removeGroup'"
-          ng-model="selectedGroup" class="form-control">
+          ng-model="selectedGroup" class="form-control input-sm">
         <option value="" translate>--- Select group ---</option>
         <option ng-repeat="group in groups" value="{{ group.id }}">{{ group.name | translate }}</option>
       </select>
       <!-- add group button -->
       <a ng-show="selectedAction == 'addGroup'"
-          ng-click="addGroupMultiple(selectedGroup)" class="btn btn-default">
-        <i class="fa fa-plus fa-lg"></i>
+          ng-click="addGroupMultiple(selectedGroup)" class="btn btn-default btn-sm">
+        <i class="fa fa-plus"></i>
         <translate>Add group</translate>
       </a>
       <!-- remove group button -->
       <a ng-show="selectedAction == 'removeGroup'"
-          ng-click="removeGroupMultiple(selectedGroup)" class="btn btn-default">
-        <i class="fa fa-minus fa-lg"></i>
+          ng-click="removeGroupMultiple(selectedGroup)" class="btn btn-default btn-sm">
+        <i class="fa fa-minus"></i>
         <translate>Remove group</translate>
       </a>
       <!-- generate new password button -->
-      <a ng-show="selectedAction == 'generatePasswords'" class="btn btn-default"
+      <a ng-show="selectedAction == 'generatePasswords'" class="btn btn-default btn-sm"
         ng-click="generateNewPasswordsMultiple()">
         <i class="fa fa-magic"></i>
         <translate>Generate new passwords</translate>
       </a>
       <!-- set bool property button -->
       <a ng-show="inArray(['is_active', 'is_present', 'is_committee'], selectedAction)"
-        ng-click="setBoolPropertyMultiple(selectedAction, true)" class="btn btn-default">
+        ng-click="setBoolPropertyMultiple(selectedAction, true)" class="btn btn-default btn-sm">
+        <i class="fa fa-check"></i>
         <span ng-if="selectedAction == 'is_active'" translate>Is active</span>
         <span ng-if="selectedAction == 'is_present'" translate>Is present</span>
         <span ng-if="selectedAction == 'is_committee'" translate>Is committee</span>
       </a>
       <!-- unset bool property button -->
       <a ng-show="inArray(['is_active', 'is_present', 'is_committee'], selectedAction)"
-        ng-click="setBoolPropertyMultiple(selectedAction, false)" class="btn btn-default">
+        ng-click="setBoolPropertyMultiple(selectedAction, false)" class="btn btn-default btn-sm">
+        <i class="fa fa-ban"></i>
         <span ng-if="selectedAction == 'is_active'" translate>Is not active</span>
         <span ng-if="selectedAction == 'is_present'" translate>Is not present</span>
         <span ng-if="selectedAction == 'is_committee'" translate>Is not a committee</span>