diff --git a/lib/forcegraph.js b/lib/forcegraph.js
index eba9f19..3d0ccc8 100644
--- a/lib/forcegraph.js
+++ b/lib/forcegraph.js
@@ -285,18 +285,6 @@ define(['d3', 'helper'], function (d3, helper) {
       nctx.moveTo(radius, 0);
       nctx.arc(0, 0, radius, 0, 2 * Math.PI);
 
-      nctx.strokeStyle = 'rgba(255, 0, 0, 1)';
-      nctx.shadowOffsetX = node.width * 1.5;
-      nctx.shadowOffsetY = node.height * 1.5 + 3;
-      nctx.shadowBlur = 12;
-      nctx.shadowColor = 'rgba(0, 0, 0, 0.16)';
-      nctx.stroke();
-      nctx.shadowOffsetX = node.width * 1.5;
-      nctx.shadowOffsetY = node.height * 1.5 + 3;
-      nctx.shadowBlur = 12;
-      nctx.shadowColor = 'rgba(0, 0, 0, 0.23)';
-      nctx.stroke();
-
       nctx.restore();
       nctx.translate(node.width / 2 / scale / r, node.height / 2 / scale / r);
 
@@ -404,10 +392,6 @@ define(['d3', 'helper'], function (d3, helper) {
       // -- draw node highlights --
       if (highlightedNodes.length) {
         ctx.save();
-        ctx.shadowColor = 'rgba(255, 255, 255, 1.0)';
-        ctx.shadowBlur = 10 * nodeRadius;
-        ctx.shadowOffsetX = 0;
-        ctx.shadowOffsetY = 0;
         ctx.globalCompositeOperation = 'lighten';
         ctx.fillStyle = highlightColor;
 
@@ -425,10 +409,6 @@ define(['d3', 'helper'], function (d3, helper) {
       if (highlightedLinks.length) {
         ctx.save();
         ctx.lineWidth = 2 * 5 * nodeRadius;
-        ctx.shadowColor = 'rgba(255, 255, 255, 1.0)';
-        ctx.shadowBlur = 10 * nodeRadius;
-        ctx.shadowOffsetX = 0;
-        ctx.shadowOffsetY = 0;
         ctx.globalCompositeOperation = 'lighten';
         ctx.strokeStyle = highlightColor;
         ctx.lineCap = 'round';
@@ -684,8 +664,6 @@ define(['d3', 'helper'], function (d3, helper) {
         bctx.textBaseline = 'middle';
         bctx.textAlign = 'center';
         bctx.fillStyle = 'rgba(242, 227, 198, 1.0)';
-        bctx.shadowColor = 'rgba(0, 0, 0, 1)';
-        bctx.shadowBlur = 5;
         bctx.fillText(name, buffer.width / (2 * scale), buffer.height / (2 * scale));
 
         d.label = buffer;