diff --git a/src/modules/pages/maintain/forms/components/form.jdbc.ts b/src/modules/pages/maintain/forms/components/form.jdbc.ts
index a39b3c1..7badcea 100644
--- a/src/modules/pages/maintain/forms/components/form.jdbc.ts
+++ b/src/modules/pages/maintain/forms/components/form.jdbc.ts
@@ -374,6 +374,7 @@ export class FormJdbc extends BI.Widget {
                 },
                 {
                     type: CollapseXtype,
+                    bgap: -15,
                     width: 70,
                     name: BI.i18nText('Dec-Dcm_Connection_Form_Database_Advanced_Setting'),
                     listeners: [
@@ -396,6 +397,7 @@ export class FormJdbc extends BI.Widget {
                     items: [
                         {
                             type: FormItemXtype,
+                            tgap: 15,
                             name: BI.i18nText('Dec-Dcm_Connection_Form_Database_Initial_Size'),
                             forms: [{
                                 type: TextCheckerXtype,