Fix float init issue

jet/static/jet/css/_changelist.scss

@@ -98,12 +98,17 @@
 #toolbar {
   float: left;
   margin-bottom: 20px;
+  display: none;
 
   @include for-mobile {
     float: none;
     margin-bottom: 10px;
   }
 
+  &.initialized {
+    display: block;
+  }
+
   form {
     label[for="searchbar"] {
       display: none;