diff --git a/frontend/src/pages/LessonForm.vue b/frontend/src/pages/LessonForm.vue
index 1d5a5de7..4f7f30f0 100644
--- a/frontend/src/pages/LessonForm.vue
+++ b/frontend/src/pages/LessonForm.vue
@@ -662,8 +662,7 @@ usePageMeta(() => {
 }
 
 iframe {
-	border-top: 3px solid theme('colors.gray.700');
-	border-bottom: 3px solid theme('colors.gray.700');
+	border: none !important;
 }
 
 .tc-table {