var gulp = require('gulp');
var embed = require('gulp-image-embed');
 
//basic
gulp.task('embed', function(){
  return gulp.src('*.css')
    .pipe(embed({
      asset: 'static'
    }))
    .pipe(gulp.dest('build.css'));
});
 
//use include
gulp.task('embed', function(){
  return gulp.src('*.css')
    .pipe(embed({
      asset: 'static',
      include: [/dataURI/]
    }))
    .pipe(gulp.dest('build.css'));
});