diff --git a/assets/scss/components/code-highlight.scss b/assets/scss/components/code-highlight.scss
index 970e738..c0f2a27 100644
--- a/assets/scss/components/code-highlight.scss
+++ b/assets/scss/components/code-highlight.scss
@@ -57,3 +57,8 @@ $ht-code-border-radius: .4em;
     display: block;
     font-size: 1rem;
 }
+
+// fix #48 => https://github.com/slashformotion/hugo-tufte/issues/48
+ul>li>div.highlight {
+    width: 100%;
+}
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