CODE EXAMPLE FOR JAVASCRIPT

bottom shadow in react native

const styles = StyleSheet.create({
  container: {
    ...Platform.select({
      ios: {
        shadowColor: '#000',
        shadowOffset: {width: 1, height: 3},
        shadowOpacity: 0.2,
      },
      android: {
        elevation: 4,
      },
    }),
  },
});