diff --git a/theme/classic.html b/theme/classic.html
index a65d4ab..6bd9f8c 100644
--- a/theme/classic.html
+++ b/theme/classic.html
@@ -184,7 +184,7 @@
                     </div>
                     <div style="margin: 24px">
 <!--IsimgFileStart-->
-                        <img src="<!--FileEncodeUrl-->" alt="<!--FileName-->" onload="if (this.offsetWidth>document.getElementById('url').offsetWidth) this.style.width='100%';" />
+                        <img src="<!--FileEncodeUrl-->" alt="<!--FileName-->" onload="if (this.offsetWidth>document.getElementById('url').offsetWidth) this.style.width='100%';if (this.offsetHeight>document.documentElement.clientHeight) this.style.height=document.documentElement.clientHeight + 'px';" />
 <!--IsimgFileEnd-->
 <!--IsvideoFileStart-->
                         <div id="video-a0"></div>