diff --git a/docs/src/assets/scss/syntax-highlighter.scss b/docs/src/assets/scss/syntax-highlighter.scss
index b0160f7e614..36c2f721775 100644
--- a/docs/src/assets/scss/syntax-highlighter.scss
+++ b/docs/src/assets/scss/syntax-highlighter.scss
@@ -106,6 +106,12 @@ pre[class*="language-"] {
     cursor: help;
 }
 
+.language-abnf .token {
+    display: inline;
+    padding: 0;
+    margin: 0;
+}
+
 pre {
     counter-reset: lineNumber;
 }