diff --git a/examples/v-marks.js b/examples/v-marks.js
index 1cd8f7c..c752f51 100644
--- a/examples/v-marks.js
+++ b/examples/v-marks.js
@@ -4,7 +4,7 @@ const React = require('react');
 const ReactDOM = require('react-dom');
 const Slider = require('rc-slider');
 
-const style = {float: 'left', 'marginBottom': 20, width: 160, height: 400, marginBottom: 160, marginLeft: 50};
+const style = {float: 'left', width: 160, height: 400, marginBottom: 160, marginLeft: 50};
 const parentStyle = {overflow: 'hidden'};
 
 const marks = {
diff --git a/examples/v-range.js b/examples/v-range.js
index 7cb30c0..c8f6dc8 100644
--- a/examples/v-range.js
+++ b/examples/v-range.js
@@ -5,7 +5,7 @@ const React = require('react');
 const ReactDOM = require('react-dom');
 const Slider = require('rc-slider');
 
-const style = {float: 'left', 'marginBottom': 20, width: 180, height: 400, marginBottom: 160, marginLeft: 50};
+const style = {float: 'left', width: 180, height: 400, marginBottom: 160, marginLeft: 50};
 const parentStyle = {overflow: 'hidden'};
 
 function log(value) {
diff --git a/examples/v-slider.js b/examples/v-slider.js
index 086520a..85bc5f1 100644
--- a/examples/v-slider.js
+++ b/examples/v-slider.js
@@ -5,7 +5,7 @@ const React = require('react');
 const ReactDOM = require('react-dom');
 const Slider = require('rc-slider');
 
-const style = {float: 'left', 'marginBottom': 20, width: 200, height: 400, marginBottom: 160, marginLeft: 50};
+const style = {float: 'left', width: 200, height: 400, marginBottom: 160, marginLeft: 50};
 const parentStyle = {overflow: 'hidden'};
 
 function log(value) {