Simple user macro 

## Sticky box macro by Vertuna LLC
## @param Width:title=Width|type=string|required=true|desc=Width in pixels (numeric)
## @param Height:title=Height|type=string|required=true|desc=Height in pixels (numeric)
## @param Top:title=Top|type=string|required=true|desc=Top in pixels (numeric)
## @param Left:title=Left|type=string|required=true|desc=Left in pixels (numeric)
<div style="position:absolute; z-index:9999; width:${paramWidth}px; height:${paramHeight}px;top:${paramTop}px;left:${paramLeft}px">
$body
</div>

 

This macro uses "Rendered mode"

 

Online demo, see above

<div style="background-color:white; border:1px; border-color:red;  border-style:solid;">
<h2>Sticky box user macro demo</h2>
<ul>
        <li>Hello</li>
        <li>World</li>
        <li>of</li>
        <li>Macros</li>
        <li>
          <ac:emoticon ac:name="smile"/>
        </li>
      </ul>
</div>