From d1f3dc9a04225b327b6fd6deb9d3913918054a9f Mon Sep 17 00:00:00 2001
From: John Resig <jeresig@gmail.com>
Date: Fri, 17 Sep 2010 13:51:12 -0400
Subject: [PATCH] Make sure that empty height/width values are still set.

---
 src/css.js | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/css.js b/src/css.js
index 87f9abd70..9113be2ae 100644
--- a/src/css.js
+++ b/src/css.js
@@ -150,11 +150,16 @@ jQuery.each(["height", "width"], function( i, name ) {
 		},
 
 		set: function( elem, value ) {
-			// ignore negative width and height values #1599
-			value = parseFloat(value);
+			if ( value !== "" ) {
+				// ignore negative width and height values #1599
+				value = parseFloat(value);
 
-			if ( value >= 0 ) {
-				return value + "px";
+				if ( value >= 0 ) {
+					return value + "px";
+				}
+
+			} else {
+				return value;
 			}
 		}
 	};