layout problems

[kproc]

Hi the below css is used to create to containers to display information side by side within another contain that is part of the entire page layout. When I put information in the containers for explore it displays correctly but Fire fox shoots the right container under the left container.

thank you for any help

.container{
	padding:5px;
	float:right;

}

.left{
	width:47%;
	padding:5px;
	float:left;
}

.right{
	width:47%;
	padding:5px;
	float:right;

}

page layout css

#outer {
 text-align:left;
 width:750px;
 min-height:600px;
 text-align:left;
 margin:auto;
	
	
}

	* html #outer {
height: 600px;
	
}


#hdr {
 height:75px;
 border-bottom:5px solid #DDEE7C;
 background:#B5D01B;
 color: #848484;
 width:720px;
  }

#bar {
	position:relative;
	margin-top:-40px;
	height:50px;
	width:598px;
	left:149px;
	background:#DDEE7C;
	border-top:2px double #EFF7C0;
 	border-left: 2px solid #EFF7C0;
 	border-right: 2px solid #EFF7C0;
	z-index: 99;
	 }
	 
#logo {
	width:125px; 
	padding-top:10px;
	padding-left:10px;
}

.logoText{
	text-decoration:none;
	padding-bottom:10px;
	color: #FFFFFF;
	font-weight:bold;
	font-family: Georgia, "Times New Roman", Times, serif;
}

#NavPos {
    position:relative;
	padding-top:10px;
	margin-left:155px; 
	width:500px; 
	top:-75px;

}

#bodyblock {
	position: relative;
    color: #848484;
	width:750px;
	/*margin-top:-25px;*/
	padding:0;
	min-height:600px;
	left: 3;
	
	
}

	* html #bodyblock{
height: 600px;
	
 }

#l-col {
 float:left;
 padding-top:10px;
 border:2px solid #EFF7C0;
 color: #848484;
 width:145px;
 min-height:600px;
 }
 
 	* html #l-col{
height: 600px;
	
 }
 

#cont {
	width:595px;
	padding-top:10px;
	float:right;
	background:#ffffff;
	color: #333333;
	border:2px solid #EFF7C0;
	text-align:left;
	min-height:600px;
	
 }
 
 	* html #cont{
height: 600px;
	
 }
 

#ftr {
 height:25px;
 color: #848484;
 border-top:3px double #EFF7C0;
 border-left: 2px solid #EFF7C0;
 border-right: 2px solid #EFF7C0;
 border-bottom: 2px solid #EFF7C0;
 margin-top:1em;
 }

[Centauri]

give .container a specific width