diff --git a/css/site.css b/css/site.css
index ec09867..0bd8f44 100644
--- a/css/site.css
+++ b/css/site.css
@@ -270,6 +270,10 @@ html.support {
     height: 100%;
 }
 
+html.support #footer {
+    display: none;
+}
+
 html.support #main {
     position: fixed;
     left: 0;
diff --git a/js/code.js b/js/code.js
index 7c3c561..ecfeca3 100644
--- a/js/code.js
+++ b/js/code.js
@@ -4407,7 +4407,8 @@ $.fn.tweet = function(options) {
             var container = $("#main .container");
             var availWidth = 950 - 300;
             var availHeight = container.height() - 80;
-            if (availHeight>800) availHeight = 800;
+            if (availHeight<200) availHeight = 200;
+            if (availHeight>600) availHeight = 600;
 
             var gen = function(item) {
                 index++;