Fix marcj#63 Use overflow: hidden instead of scroll

Author: caseywebdev

src/ResizeSensor.js

@@ -64,7 +64,7 @@
 
             element.resizeSensor = document.createElement('div');
             element.resizeSensor.className = 'resize-sensor';
-            var style = 'position: absolute; left: 0; top: 0; right: 0; bottom: 0; overflow: scroll; z-index: -1; visibility: hidden;';
+            var style = 'position: absolute; left: 0; top: 0; right: 0; bottom: 0; overflow: hidden; z-index: -1; visibility: hidden;';
             var styleChild = 'position: absolute; left: 0; top: 0;';
 
             element.resizeSensor.style.cssText = style;
@@ -114,7 +114,7 @@
                     el.addEventListener(name, cb);
                 }
             };
-            
+
             var onScroll = function() {
               if (element.offsetWidth != lastWidth || element.offsetHeight != lastHeight) {
                   changed();