diff --git a/default_environment/stylesheet/main.css b/default_environment/stylesheet/main.css
index 46aae3f..68562bb 100644
--- a/default_environment/stylesheet/main.css
+++ b/default_environment/stylesheet/main.css
@@ -186,11 +186,13 @@ body {
   .inline_source_block {
     font-family: var(--src-font-family);
     font-size: 1.2rem;
+    font-variant-ligatures: none;
   }
 
   .code,
   .verbatim {
     font-family: var(--src-font-family);
+    font-variant-ligatures: none;
   }
 
   .quote_block {