text: import {Dimensions} from 'react-native';
  const {width, height} = Dimensions.get('window');
  
  var units = {
    vw: width/100
  , vh: height/100
  };
  
  units.vmin = Math.min(units.vw, units.vh);
  units.vmax = Math.max(units.vw, units.vh);
  
  export default units;
  