text: import React from 'react';
  import {View, Text} from 'react-native';
  
  const Header = () => (
      <View style={styles.headerContainer}>
          <Text>Cryptocurrency App</Text>
      </View>
  )
  
  const styles = {
      headerContainer: {
          display: "flex",
          marginTop: 55,
          alignItems: "center",
      },
      header: {
          fontWeight: "bold",        
          fontSize: 20,
      }
  }
  
  export default Header;