text: import React from 'react'
  import { StyleSheet, Text, View } from 'react-native'
  
  
  export default class App extends React.Component {
    render() {
      return (
        <View style={styles.container}>
          <View style={styles.box} />
          <View style={styles.box} />
          <View style={styles.box} />
        </View>
      )
    }
  }
  
  const styles = StyleSheet.create({
    container: {
      flex: 1,
      backgroundColor: '#fff',
      alignItems: 'center',
      justifyContent: 'center',
    },
    box: {
      padding: 30,
      backgroundColor: 'steelblue',
      margin: 4,
    },
  })
  