diff --git a/assets/css/common/post-single.css b/assets/css/common/post-single.css
index b9b9709..4458995 100644
--- a/assets/css/common/post-single.css
+++ b/assets/css/common/post-single.css
@@ -224,6 +224,7 @@
     background: var(--tertiary);
     border-top: 0;
     border-bottom: 0;
+    border: 0;
 }
 
 .post-content iframe {