diff --git a/packages/renderer/MdToHtml/rules/fountain.ts b/packages/renderer/MdToHtml/rules/fountain.ts
index 9386640ec..7aa11f4be 100644
--- a/packages/renderer/MdToHtml/rules/fountain.ts
+++ b/packages/renderer/MdToHtml/rules/fountain.ts
@@ -38,6 +38,10 @@ const pluginAssets = function() {
font-weight: bold;
}
+ .fountain .italic {
+ font-style: italic;
+ }
+
.fountain .underline {
text-decoration: underline;
}