diff --git a/3parties/marked.js b/3parties/marked.js
index 1edffb2..9f47e8e 100755
--- a/3parties/marked.js
+++ b/3parties/marked.js
@@ -968,7 +968,7 @@ class Renderer {
       return text;
     }
 
-    let out = `<img src="${href}" alt="${text}"`;
+    let out = `<img src="${href}" alt="${text}" style="width: 100%" `;
     if (title) {
       out += ` title="${title}"`;
     }