diff --git a/gui/default/assets/css/overrides.css b/gui/default/assets/css/overrides.css
index a5a652b99..7930d73b8 100644
--- a/gui/default/assets/css/overrides.css
+++ b/gui/default/assets/css/overrides.css
@@ -41,6 +41,12 @@ ul+h5 {
     float: none; /* issue #1197 */
 }
 
+#advancedAccordion input.form-control[type="checkbox"] {
+    box-shadow: none;
+    margin: 0;
+    width: auto;
+}
+
 .popover {
     max-width: none;
     min-width: 250px;