Returned the image height because the page is jumping too much on image load.

boards/static/css/md/base_page.css

@@ -168,6 +168,8 b' blockquote {'
     min-width: 1px;
     text-align: center;
     display: table-row;
+
+    height: 150px;
 }
 
 .post > .metadata {