diff --git a/index.html b/index.html
index 3983658..4834e6f 100644
--- a/index.html
+++ b/index.html
@@ -77,6 +77,7 @@
 
             // run initializer
             applyZpd();
+            paper.attr('style', "postion:absolute; top:300px; left:300px");
 
 
             // UI improvement needed
diff --git a/snap.svg.zpd.js b/snap.svg.zpd.js
index e55106e..7ae289f 100644
--- a/snap.svg.zpd.js
+++ b/snap.svg.zpd.js
@@ -156,8 +156,8 @@
 
             var p = svgNode.node.createSVGPoint();
 
-            p.x = event.clientX;
-            p.y = event.clientY;
+            p.x = event.clientX - parseFloat(window.getComputedStyle(svgNode.node,null).getPropertyValue('left'));
+            p.y = event.clientY - parseFloat(window.getComputedStyle(svgNode.node,null).getPropertyValue('top'));
 
             return p;
         };