diff --git a/components/lib/dialog/Dialog.css b/components/lib/dialog/Dialog.css
index 87a3c57bab..8bddc1b657 100644
--- a/components/lib/dialog/Dialog.css
+++ b/components/lib/dialog/Dialog.css
@@ -16,6 +16,10 @@
     display: flex;
 }
 
+.p-dialog:not([class*='p-dialog-']) {
+    display: none;
+}
+
 .p-dialog-mask.p-component-overlay {
     pointer-events: auto;
 }
diff --git a/components/lib/sidebar/Sidebar.css b/components/lib/sidebar/Sidebar.css
index 69e44f36bd..dd0b8534d3 100644
--- a/components/lib/sidebar/Sidebar.css
+++ b/components/lib/sidebar/Sidebar.css
@@ -16,6 +16,10 @@
     display: flex;
 }
 
+.p-sidebar:not([class*="p-sidebar-"]){
+    display: none;
+}
+
 .p-sidebar-mask.p-component-overlay {
     pointer-events: auto;
 }