Өндөгний чанарыг таньж мэдэцгээе

&amp;amp;amp;amp;amp;amp;amp;lt;span id="selection-marker-start" class="redactor-selection-marker"&amp;amp;amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;amp;amp;lt;/span&amp;amp;amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;amp;amp;lt;span id="selection-marker-end" class="redactor-selection-marker"&amp;amp;amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;amp;amp;lt;/span&amp;amp;amp;amp;amp;amp;amp;gt;