How do these birds pop up behind the trees on the bottom?
Are they using css with php or what is it?
How do these birds pop up behind the trees on the bottom?
Are they using css with php or what is it?
They use jQuery:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
They have some JavaScript code in perch.js that animates the birds and the trees.
They are using jQuery to animate the birds and trees. There is an animate function that pops the birds out from behind the trees - adjusting the z-index will properly layer elements in that fashion.