Updated select box to match design

app/assets/stylesheets/framework/forms.scss

@@ -78,6 +78,24 @@ label {
   border-radius: 3px;
 }
 
+.select-wrapper {
+  position: relative;
+
+  .caret {
+    position: absolute;
+    right: 10px;
+    top: $gl-padding;
+    color: $gray-darkest;
+    pointer-events: none;
+  }
+}
+
+.select-control {
+  padding-left: 10px;
+  padding-right: 10px;
+  -webkit-appearance: none;
+}
+
 .form-control-inline {
   display: inline;
 }

app/views/projects/group_links/index.html.haml

@@ -14,7 +14,9 @@
         = groups_select_tag(:link_group_id, skip_group: @project.group.try(:path))
       .form-group
         = label_tag :link_group_access, "Max access level", class: "label-light"
-        = select_tag :link_group_access, options_for_select(ProjectGroupLink.access_options, ProjectGroupLink.default_access), class: "form-control"
+        .select-wrapper
+          = select_tag :link_group_access, options_for_select(ProjectGroupLink.access_options, ProjectGroupLink.default_access), class: "form-control select-control"
+          %span.caret
       = submit_tag "Share", class: "btn btn-create"
   .col-sm-12
     %hr