<div id="abc">

<div id="ghi">

test 1

</div>

<div id="def">

test 2

</div>

</div>

<div id="jkl">

<div id="def">

test 3

</div>

</div>

<script language="JavaScript">

$('#abc #def').css("border","3px solid red");

$('#jkl #def').css("color", "green");

</script>

The 2nd line of the script will not function and returns a null. The last version that works properly is 1.2.6 I have tried all versions from 1.2.6 up through 1.4.1 and all are affected.