FixedDimensionsBasics.jsx

import React, { Component } from 'react';
import { View } from 'react-native';

const FixedDimensionsBasics  = () => (
  <View>
    <View style={{ width: 50, height: 50, backgroundColor: 'powderblue' }} />
    <View style={{ width: 100, height: 100, backgroundColor: 'skyblue' }} />
    <View style={{ width: 150, height: 150, backgroundColor: 'steelblue' }} />
  </View>
);