Generated by SassMeister.com.

SassMeister-input-HTML.html

<ul>
  <li><p>Vivamus elementum consectetur interdum. Ut.</p></li>
  <li><p>Vivamus elementum consectetur interdum. Ut.</p></li>
  <li><p>Vivamus elementum consectetur interdum. Ut.</p></li>
  <li class="last"><p>Vivamus elementum consectetur interdum. Ut.</p></li>
</ul>

SassMeister-input.scss

// ----
// Sass (v3.3.10)
// Compass (v1.0.0.alpha.20)
// Sassy Maps (v0.4.0)
// ----

@import 'sassy-maps';

$example-map: (
);

@function register($key){
 $pointless: map-set($example-map, $key, true); // Have to assign to a variable
 @return ''; // Have to return something
}

register(example);

SassMeister-output.css

Invalid CSS after "register": expected "{", was "(example);"

SassMeister-rendered.html

<ul>
  <li><p>Vivamus elementum consectetur interdum. Ut.</p></li>
  <li><p>Vivamus elementum consectetur interdum. Ut.</p></li>
  <li><p>Vivamus elementum consectetur interdum. Ut.</p></li>
  <li class="last"><p>Vivamus elementum consectetur interdum. Ut.</p></li>
</ul>