diff --git a/src/components/sendFeedback/ISendFeedbackComponentProps.ts b/src/components/sendFeedback/ISendFeedbackComponentProps.ts
index 5aa3942..78b1926 100644
--- a/src/components/sendFeedback/ISendFeedbackComponentProps.ts
+++ b/src/components/sendFeedback/ISendFeedbackComponentProps.ts
@@ -28,6 +28,11 @@ export interface ISendFeedbackComponentProps {
    */
   currentUser?: Profile
 
+  /**
+   * Styles
+   */
+  classes?: any
+
   /**
    * Translate to locale string
    */
diff --git a/src/components/sendFeedback/SendFeedbackComponent.tsx b/src/components/sendFeedback/SendFeedbackComponent.tsx
index bf5fd75..757eb66 100644
--- a/src/components/sendFeedback/SendFeedbackComponent.tsx
+++ b/src/components/sendFeedback/SendFeedbackComponent.tsx
@@ -2,6 +2,9 @@
 import React, { Component } from 'react'
 import PropTypes from 'prop-types'
 import { connect } from 'react-redux'
+import classNames from 'classnames'
+
+// - Material UI
 import Paper from 'material-ui/Paper'
 import TextField from 'material-ui/TextField'
 import IconButton from 'material-ui/IconButton'
@@ -11,6 +14,7 @@ import SvgClose from 'material-ui-icons/Clear'
 import { CircularProgress } from 'material-ui/Progress'
 import Tooltip from 'material-ui/Tooltip'
 import { getTranslate, getActiveLanguage } from 'react-localize-redux'
+import { withStyles } from 'material-ui/styles'
 
 // - Import app components
 
@@ -30,6 +34,17 @@ import { ServerRequestType } from 'constants/serverRequestType'
 import { User } from 'core/domain/users'
 import { ServerRequestStatusType } from 'actions/serverRequestStatusType'
 
+const styles = (theme: any) => ({
+  fullPageXs: {
+    [theme.breakpoints.down('xs')]: {
+      width: '100%',
+      height: '100%',
+      margin: 0,
+      overflowY: 'auto'
+    }
+  }
+})
+
 /**
  * Create component class
  */
@@ -180,11 +195,11 @@ export class SendFeedbackComponent extends Component<ISendFeedbackComponentProps
    * @return {react element} return the DOM which rendered by component
    */
   render () {
-    const { sendFeedbackStatus, hideFeedback, sendFeed, sendFeedbackRequest } = this.props
+    const { sendFeedbackStatus, hideFeedback, sendFeed, sendFeedbackRequest, classes } = this.props
     const { feedText } = this.state
 
     return (
-      <div className='sendFeedback__content animate__up'>
+      <div className={classNames('sendFeedback__content', 'animate__up',classes.fullPageXs)}>
         <Paper className='paper' >
           <div className='close'>
           <Tooltip title='Cancel' placement='bottom-start'>
@@ -240,4 +255,4 @@ const mapStateToProps = (state: any, ownProps: ISendFeedbackComponentProps) => {
 }
 
 // - Connect component to redux store
-export default connect(mapStateToProps, mapDispatchToProps)(SendFeedbackComponent as any)
+export default connect(mapStateToProps, mapDispatchToProps)((withStyles(styles)(SendFeedbackComponent as any)) as any)
diff --git a/src/styles/app.css b/src/styles/app.css
index 03d07b6..b2da0f9 100644
--- a/src/styles/app.css
+++ b/src/styles/app.css
@@ -657,11 +657,9 @@ g__input-underline::after {
   position: fixed;
   right: 5px;
   bottom: 5px;
-  z-index: 1; }
+  z-index: 1101; }
   .sendFeedback__content .paper {
-    width: 350px;
     height: 100%;
-    margin: 20px;
     text-align: center; }
   .sendFeedback__content .main-box {
     padding: 26px 26px 0px 26px; }
diff --git a/src/styles/components/_sendFeedback.scss b/src/styles/components/_sendFeedback.scss
index 64f5891..aec5dd4 100644
--- a/src/styles/components/_sendFeedback.scss
+++ b/src/styles/components/_sendFeedback.scss
@@ -3,11 +3,9 @@
     position: fixed;
     right: 5px;
     bottom: 5px;
-    z-index: 1;
+    z-index: 1101;
     .paper {
-        width: 350px;
         height: 100%;
-        margin: 20px;
         text-align: center;
         
     }