2D fractal. An SVG version of <a href="https://en.wikipedia.org/wiki/Cantor_dust" class="extiw" title="w:Cantor dust">Cantor dust</a> order 5, using cloning.<br><p>It starts with black rectangles of 1px × 1px, combined to a rectancle of 
</p>
<ol><li class="mw-empty-elt"><li value="0"> order 3px × 3px; next sizes are</li>
<li>order 9px × 9px, then</li>
<li>order 27px × 27px</li>
<li>order 81px × 81px</li>
<li>order 243px × 243px until</li>
<li>order 729px ×729px.</li></ol>
To obtain <i>higher orders</i>, each clone more needs ~70 bytes of SVG coding.
<a href="//commons.wikimedia.org/wiki/User:Sarang" class="mw-redirect" title="User:Sarang">Sarang</a>
Own work based on: <a href="//commons.wikimedia.org/wiki/File:Cantor_dust.svg" title="File:Cantor dust.svg">Cantor dust.svg</a> <span style="visibility:hidden; color:transparent;">0</span> (610K, where the start rectangle is 12 × 12)