2 files changed, 6 insertions, 2 deletions
diff --git a/src/test/html/longcat.html b/src/test/html/longcat.html
index 53e13c3fcee..612a1dac758 100644
--- a/src/test/html/longcat.html
+++ b/src/test/html/longcat.html
@@ -1,5 +1,8 @@
 <html>
 <head>
+<style type="text/css">
+  p { margin: 0px; fonts-size: 0px }
+</style>
 </head>
 <body>
 <p><img src="longcattop.png"/></p>
diff --git a/src/test/html/longcat.js b/src/test/html/longcat.js
index d492c3417c4..0e3a0991fa4 100644
--- a/src/test/html/longcat.js
+++ b/src/test/html/longcat.js
@@ -14,10 +14,11 @@ function wait_for_img_load(f) {
 wait_for_img_load(function() {
 	var count = 0;
 	function elongate() {
-		let height = Math.round((Math.sin(count) + 1) * 70 + 20);
+		var height = Math.round((Math.cos(count + Math.PI) + 1) * 100 + 20);
 		count += 0.2;
 		longcat_mid.height = height;
-		window.setTimeout(function() { elongate() }, 100);
+		longcat_mid.width = 600;
+		window.setTimeout(function() { elongate() }, 50);
 	}
 	elongate();
 });