jquery Mobile development footer always at the bottom of the Setup method

If you write footer like this,
<div data-role= "Footer" >
<a href= "http://www.jqdemo.com" data-transition= "Fade" data-theme= "data-icon=" ">jquery plug-in </A></H4 >
</div>
The effect will be this


There is a blank space below, because the bottom is to adapt to the content, if I want the top is always low, even if scrolling does not affect the bottom, we only need to add properties:

data-position= "Fixed"

Like this:

<div data-role= "Footer" data-position= "fixed" >
<a href= "http://www.jqdemo.com" data-transition= "Fade" data-theme= "data-icon=" ">jquery plug-in </A></H4 >
</div>
Will hit the result we want:

jquery Mobile development footer always at the bottom of the Setup method