title: Copy a file to several directories with gulp
body: <p>I would like to copy a specific file <code>style.css</code> to several directories css folder by the use of gulp, for exmple:</p>
  
  <pre><code>Project
  - directory 1
   - css
  - directory 2
   - css
  - directory 3
   - css
  - directory 4
   - css
  - style.css
  </code></pre>
  
  <hr>
  
  <p>As far as I understood, gulp can only copy <strong>a file or several files</strong> into <strong>one directory</strong> not several directories. </p>
  
  <pre><code>gulp.task('copy', function() {
    return gulp.src('project/style.css')
      .pipe(gulp.dest('project'));
  });
  </code></pre>
  
  <p>Consider that I know it is possible to write several <code>gulp.dest</code> but I need a dynamic way to handle many directory.
  So is there any solution out there?</p>