diff --git a/examples/custom-handles.js b/examples/custom-handles.js
index a306f4f..7a50e90 100644
--- a/examples/custom-handles.js
+++ b/examples/custom-handles.js
@@ -19,7 +19,7 @@ const handleStyle = {
 };
 
 const CustomHandle = props => {
-  const style = Object.assign({ left: props.offset + '%' }, handleStyle);
+  const style = Object.assign({ left: `${props.offset}%` }, handleStyle);
   return (
     <div style={style}>val: {props.value}</div>
   );
@@ -39,5 +39,6 @@ ReactDOM.render(
       <p>Slider with custom handle</p>
       <Slider min={0} max={20} defaultValue={3} handle={<CustomHandle />} />
     </div>
-  </div>
-  , document.getElementById('__react-content'));
+  </div>,
+  document.getElementById('__react-content')
+);
diff --git a/examples/range.js b/examples/range.js
index 5cf1836..de589fb 100644
--- a/examples/range.js
+++ b/examples/range.js
@@ -81,7 +81,9 @@ const DynamicBounds = React.createClass({
         <label>Max: </label>
         <input type="number" value={this.state.max} onChange={this.onMaxChange} />
         <br /><br />
-        <Slider range defaultValue={[20, 50]} min={this.state.min} max={this.state.max} onChange={this.onSliderChange} />
+        <Slider range defaultValue={[20, 50]} min={this.state.min} max={this.state.max}
+          onChange={this.onSliderChange}
+        />
       </div>
     );
   },
diff --git a/examples/slider.js b/examples/slider.js
index 01b193f..ee6f9ab 100644
--- a/examples/slider.js
+++ b/examples/slider.js
@@ -13,7 +13,7 @@ function log(value) {
 
 
 function percentFormatter(v) {
-  return v + ' %';
+  return `${v} %`;
 }
 
 const CustomizedSlider = React.createClass({
@@ -32,7 +32,11 @@ const CustomizedSlider = React.createClass({
     console.log(value);
   },
   render() {
-    return <Slider value={this.state.value} onChange={this.onSliderChange} onAfterChange={this.onAfterChange} />;
+    return (
+      <Slider value={this.state.value}
+        onChange={this.onSliderChange} onAfterChange={this.onAfterChange}
+      />
+    );
   },
 });
 
@@ -65,7 +69,9 @@ const DynamicBounds = React.createClass({
         <label>Max: </label>
         <input type="number" value={this.state.max} onChange={this.onMaxChange} />
         <br /><br />
-        <Slider defaultValue={50} min={this.state.min} max={this.state.max} onChange={this.onSliderChange} />
+        <Slider defaultValue={50} min={this.state.min} max={this.state.max}
+          onChange={this.onSliderChange}
+        />
       </div>
     );
   },
@@ -87,7 +93,9 @@ ReactDOM.render(
     </div>
     <div style={style}>
       <p>Basic Slider with `tipFormatter`</p>
-      <Slider tipFormatter={percentFormatter} tipTransitionName="rc-slider-tooltip-zoom-down" onChange={log} />
+      <Slider tipFormatter={percentFormatter}
+        tipTransitionName="rc-slider-tooltip-zoom-down" onChange={log}
+      />
     </div>
     <div style={style}>
       <p>Basic Slider without tooltip</p>
diff --git a/examples/v-marks.js b/examples/v-marks.js
index 22143dd..2b9d856 100644
--- a/examples/v-marks.js
+++ b/examples/v-marks.js
@@ -49,7 +49,9 @@ ReactDOM.render(
     </div>
     <div style={style}>
       <p>Range with marks and steps</p>
-      <Slider vertical min={-10} range marks={marks} step={10} onChange={log} defaultValue={[20, 40]} />
+      <Slider vertical min={-10} range marks={marks} step={10}
+        onChange={log} defaultValue={[20, 40]}
+      />
     </div>
   </div>
   , document.getElementById('__react-content'));
diff --git a/examples/v-range.js b/examples/v-range.js
index c8522b3..678ba43 100644
--- a/examples/v-range.js
+++ b/examples/v-range.js
@@ -39,7 +39,9 @@ const CustomizedRange = React.createClass({
   render() {
     return (
       <div style={style}>
-        <Slider range vertical allowCross={false} value={this.state.value} onChange={this.onSliderChange} />
+        <Slider range vertical allowCross={false} value={this.state.value}
+          onChange={this.onSliderChange}
+        />
         <label>LowerBound: </label>
         <input type="number" value={this.state.lowerBound} onChange={this.onLowerBoundChange} />
         <br />
@@ -75,7 +77,9 @@ const DynamicBounds = React.createClass({
   render() {
     return (
       <div style={style}>
-        <Slider range vertical defaultValue={[20, 50]} min={this.state.min} max={this.state.max} onChange={this.onSliderChange} />
+        <Slider range vertical defaultValue={[20, 50]} min={this.state.min} max={this.state.max}
+          onChange={this.onSliderChange}
+        />
         <label>Min: </label>
         <input type="number" value={this.state.min} onChange={this.onMinChange} />
         <br />
diff --git a/examples/v-slider.js b/examples/v-slider.js
index 21360f8..8d009fb 100644
--- a/examples/v-slider.js
+++ b/examples/v-slider.js
@@ -14,7 +14,7 @@ function log(value) {
 
 
 function percentFormatter(v) {
-  return v + ' %';
+  return `${v} %`;
 }
 
 const CustomizedSlider = React.createClass({
@@ -58,7 +58,9 @@ const DynamicBounds = React.createClass({
     return (
       <div style={style}>
         <p>Slider with dynamic `min` `max`</p>
-        <Slider vertical defaultValue={50} min={this.state.min} max={this.state.max} onChange={this.onSliderChange} />
+        <Slider vertical defaultValue={50} min={this.state.min} max={this.state.max}
+          onChange={this.onSliderChange}
+        />
         <label>Min: </label>
         <input type="number" value={this.state.min} onChange={this.onMinChange} />
         <br />
@@ -85,7 +87,9 @@ ReactDOM.render(
     </div>
     <div style={style}>
       <p>Basic Slider with `tipFormatter`</p>
-      <Slider vertical tipFormatter={percentFormatter} tipTransitionName="rc-slider-tooltip-zoom-down" onChange={log} />
+      <Slider vertical tipFormatter={percentFormatter}
+        tipTransitionName="rc-slider-tooltip-zoom-down" onChange={log}
+      />
     </div>
     <div style={style}>
       <p>Basic Slider without tooltip</p>
diff --git a/src/Handle.jsx b/src/Handle.jsx
index 8a5449e..e3d16a5 100644
--- a/src/Handle.jsx
+++ b/src/Handle.jsx
@@ -35,7 +35,7 @@ export default class Handle extends React.Component {
       noTip,
     } = this.props;
 
-    const style = vertical ? { bottom: offset + '%' } : { left: offset + '%' };
+    const style = vertical ? { bottom: `${offset}%` } : { left: `${offset}%` };
     const handle = (
       <div className={className} style={style}
         onMouseUp={this.showTooltip.bind(this)}
diff --git a/src/Marks.jsx b/src/Marks.jsx
index 468ab38..da5c3ad 100644
--- a/src/Marks.jsx
+++ b/src/Marks.jsx
@@ -12,20 +12,20 @@ const Marks = ({ className, vertical, marks, included, upperBound, lowerBound, m
     const isActived = (!included && point === upperBound) ||
             (included && point <= upperBound && point >= lowerBound);
     const markClassName = classNames({
-      [className + '-text']: true,
-      [className + '-text-active']: isActived,
+      [`${className}-text`]: true,
+      [`${className}-text-active`]: isActived,
     });
 
     const bottomStyle = {
       // height: markWidth + '%',
-      marginBottom: '-200' + '%',
-      bottom: (point - min) / range * 100 + '%',
+      marginBottom: '-200%',
+      bottom: `${(point - min) / range * 100}%`,
     };
 
     const leftStyle = {
-      width: markWidth + '%',
-      marginLeft: -markWidth / 2 + '%',
-      left: (point - min) / range * 100 + '%',
+      width: `${markWidth}%`,
+      marginLeft: `${-markWidth / 2}%`,
+      left: `${(point - min) / range * 100}%`,
     };
 
     const style = vertical ? bottomStyle : leftStyle;
diff --git a/src/Slider.jsx b/src/Slider.jsx
index a83e929..beed01d 100644
--- a/src/Slider.jsx
+++ b/src/Slider.jsx
@@ -364,11 +364,15 @@ class Slider extends React.Component {
   addDocumentEvents(type) {
     if (type === 'touch') {
       // just work for chrome iOS Safari and Android Browser
-      this.onTouchMoveListener = addEventListener(document, 'touchmove', this.onTouchMove.bind(this));
-      this.onTouchUpListener = addEventListener(document, 'touchend', this.end.bind(this, 'touch'));
+      this.onTouchMoveListener =
+        addEventListener(document, 'touchmove', this.onTouchMove.bind(this));
+      this.onTouchUpListener =
+        addEventListener(document, 'touchend', this.end.bind(this, 'touch'));
     } else if (type === 'mouse') {
-      this.onMouseMoveListener = addEventListener(document, 'mousemove', this.onMouseMove.bind(this));
-      this.onMouseUpListener = addEventListener(document, 'mouseup', this.end.bind(this, 'mouse'));
+      this.onMouseMoveListener =
+        addEventListener(document, 'mousemove', this.onMouseMove.bind(this));
+      this.onMouseUpListener =
+        addEventListener(document, 'mouseup', this.end.bind(this, 'mouse'));
     }
   }
 
@@ -413,7 +417,7 @@ class Slider extends React.Component {
 
     const offsets = bounds.map(v => this.calcOffset(v));
 
-    const handleClassName = prefixCls + '-handle';
+    const handleClassName = `${prefixCls}-handle`;
 
     const handlesClassNames = bounds.map((v, i) => classNames({
       [handleClassName]: true,
@@ -451,33 +455,36 @@ class Slider extends React.Component {
         [`${prefixCls}-track-${i}`]: true,
       });
       tracks.push(
-          <Track className={trackClassName} vertical={vertical} included={isIncluded}
-                 offset={offsets[i - 1]} length={offsets[i] - offsets[i - 1]} key={i} />
+        <Track className={trackClassName} vertical={vertical} included={isIncluded}
+          offset={offsets[i - 1]} length={offsets[i] - offsets[i - 1]} key={i}
+        />
       );
     }
 
     const sliderClassName = classNames({
       [prefixCls]: true,
-      [prefixCls + '-disabled']: disabled,
+      [`${prefixCls}-disabled`]: disabled,
       [className]: !!className,
-      [prefixCls + '-vertical']: this.props.vertical,
+      [`${prefixCls}-vertical`]: this.props.vertical,
     });
 
     return (
-        <div ref="slider" className={sliderClassName}
-             onTouchStart={disabled ? noop : this.onTouchStart.bind(this)}
-             onMouseDown={disabled ? noop : this.onMouseDown.bind(this)}
-        >
-          {tracks}
-          <Steps prefixCls={prefixCls} vertical = {vertical} marks={marks} dots={dots} step={step}
-                 included={isIncluded} lowerBound={bounds[0]}
-                 upperBound={bounds[bounds.length - 1]} max={max} min={min} />
-          {handles}
-          <Marks className={prefixCls + '-mark'} vertical = {vertical} marks={marks}
-                 included={isIncluded} lowerBound={bounds[0]}
-                 upperBound={bounds[bounds.length - 1]} max={max} min={min} />
-          {children}
-        </div>
+      <div ref="slider" className={sliderClassName}
+        onTouchStart={disabled ? noop : this.onTouchStart.bind(this)}
+        onMouseDown={disabled ? noop : this.onMouseDown.bind(this)}
+      >
+        {tracks}
+        <Steps prefixCls={prefixCls} vertical = {vertical} marks={marks} dots={dots} step={step}
+          included={isIncluded} lowerBound={bounds[0]}
+          upperBound={bounds[bounds.length - 1]} max={max} min={min}
+        />
+        {handles}
+        <Marks className={`${prefixCls}-mark`} vertical = {vertical} marks={marks}
+          included={isIncluded} lowerBound={bounds[0]}
+          upperBound={bounds[bounds.length - 1]} max={max} min={min}
+        />
+        {children}
+      </div>
     );
   }
 }
diff --git a/src/Steps.jsx b/src/Steps.jsx
index 8234148..5c4da08 100644
--- a/src/Steps.jsx
+++ b/src/Steps.jsx
@@ -3,7 +3,10 @@ import classNames from 'classnames';
 import warning from 'warning';
 
 function calcPoints(vertical, marks, dots, step, min, max) {
-  warning(dots ? step > 0 : true, '`Slider[step]` should be a positive number in order to make Slider[dots] work.');
+  warning(
+    dots ? step > 0 : true,
+    '`Slider[step]` should be a positive number in order to make Slider[dots] work.'
+  );
   const points = Object.keys(marks).map(parseFloat);
   if (dots) {
     for (let i = min; i <= max; i = i + step) {
@@ -18,20 +21,20 @@ const Steps = ({ prefixCls, vertical, marks, dots, step, included,
                 lowerBound, upperBound, max, min }) => {
   const range = max - min;
   const elements = calcPoints(vertical, marks, dots, step, min, max).map((point) => {
-    const offset = Math.abs(point - min) / range * 100 + '%';
+    const offset = `${Math.abs(point - min) / range * 100}%`;
     const style = vertical ? { bottom: offset } : { left: offset };
 
     const isActived = (!included && point === upperBound) ||
             (included && point <= upperBound && point >= lowerBound);
     const pointClassName = classNames({
-      [prefixCls + '-dot']: true,
-      [prefixCls + '-dot-active']: isActived,
+      [`${prefixCls}-dot`]: true,
+      [`${prefixCls}-dot-active`]: isActived,
     });
 
     return <span className={pointClassName} style={style} key={point} />;
   });
 
-  return <div className={prefixCls + '-step'}>{elements}</div>;
+  return <div className={`${prefixCls}-step`}>{elements}</div>;
 };
 
 export default Steps;
diff --git a/src/Track.jsx b/src/Track.jsx
index dcc2cbe..32e9859 100644
--- a/src/Track.jsx
+++ b/src/Track.jsx
@@ -5,11 +5,11 @@ const Track = ({ className, included, vertical, offset, length }) => {
     visibility: included ? 'visible' : 'hidden',
   };
   if (vertical) {
-    style.bottom = offset + '%';
-    style.height = length + '%';
+    style.bottom = `${offset}%`;
+    style.height = `${length}%`;
   } else {
-    style.left = offset + '%';
-    style.width = length + '%';
+    style.left = `${offset}%`;
+    style.width = `${length}%`;
   }
   return <div className={className} style={style} />;
 };
diff --git a/tests/index.js b/tests/index.js
index 8c878a3..325139c 100644
--- a/tests/index.js
+++ b/tests/index.js
@@ -1,3 +1,4 @@
+/* eslint-disable max-len */
 const expect = require('expect.js');
 const React = require('react');
 const ReactDOM = require('react-dom');