div span float left

Hi all,

Here is the code i want to be ok on mozilla.
who can help???

copy paste the code in an html document:it works on (ie) but not on mozzzz.
all javascript functions are OK.
My probleme is CSS, float,div and span or display??

THX
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<script>
function alb_aff( a_id ){


aff_id = document.getElementById('alb_cont['+a_id+']')
if( aff_id.style.display == 'block')
aff_id.style.display = 'none';
else
aff_id.style.display = 'block';
}
function myopen( url , w , h ){
window.open(
url,
'_blank',
'directories=0,scrollbar=0,menubar=0,statusbar=yes
,width='+w+',height='+h
);

}
</script>
<style>
..alb_{
float:left

}
..alb_bar{
width:100%;

height:15px;
background:#ccccff;
border:0px solid red
}
..alb_aff{
width:15px;
}
..alb_titre{
width:150px;
}
..alb_date{
width:75px;
}
..alb_mod{
width:15px;
}
..alb_cont{
width:100%;

display:none;
border:1px solid red
}
..spacer50{
width:50px;
}
..chan_nom{
width:250px;
}

</style>






<div class="alb_bar">
<div class="alb_ alb_aff">
<a style="display:block" href="#" onclick='javascript:alb_aff(20)'

plus</a
/div

<div class="alb_ alb_titre">&nbsp;</div>
<div class="alb_ alb_date">07 02 2007</div>
<div class="alb_ alb_mod">
<a onclick="myopen('page/ecoute/a_insert.php?a_id=20',400,150)">M</a>
</div>
<div class="alb_ alb_mod">20</div>
</div>



<div class="alb_cont" id='alb_cont[20]' >
<a onclick="myopen('page/ecoute/b_insert.php?a_id=20',400,150)">
Nouvelle chanson ......</a>


<div class="alb_ alb_aff">
<a style="display:block" href="#" onclick='javascript:alb_aff(20)' >@</a>
</div>
<div class="alb_ spacer50">&nbsp;</div>
<div class="alb_ chan_nom">ddddddddddd</div>


</div>





<div class="alb_bar">
<div class="alb_ alb_aff">
<a style="display:block" href="#" onclick='javascript:alb_aff(19)'

plus</a
/div

<div class="alb_
alb_titre">ffffffffffffffffffffffffffffffffffff&nb sp;</div>
<div class="alb_ alb_date">07 02 2007</div>
<div class="alb_ alb_mod">
<a onclick="myopen('page/ecoute/a_insert.php?a_id=19',400,150)">M</a>
</div>
<div class="alb_ alb_mod">19</div>
</div>



<div class="alb_cont" id='alb_cont[19]' >
<a onclick="myopen('page/ecoute/b_insert.php?a_id=19',400,150)">
Nouvelle chanson ......</a>


<div class="alb_ alb_aff">
<a style="display:block" href="#" onclick='javascript:alb_aff(19)' >@</a>
</div>
<div class="alb_ spacer50">&nbsp;</div>
<div class="alb_ chan_nom">qsfzfze</div>


</div>

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