diff --git a/src/element/markdown.css b/src/element/markdown.css
index 42c309b..29bd5f8 100644
--- a/src/element/markdown.css
+++ b/src/element/markdown.css
@@ -18,3 +18,7 @@
   font-weight: 400;
   line-height: 29px; /* 161.111% */
 }
+
+.markdown img:not(.emoji) {
+  width: 100%;
+}