diff --git a/docs/assets/css/admonition.css b/docs/assets/css/admonition.css
index 196ee23..c033dbe 100644
--- a/docs/assets/css/admonition.css
+++ b/docs/assets/css/admonition.css
@@ -9,7 +9,7 @@
---md-admonition-icon--alt: url('data:image/svg+xml;charset=utf-8,');
+--md-admonition-icon--alt: url('');
}