CSS - Multicolumn Float Not Working

		
<div id="searchbox">
			
<h2 id="searchbox_header">Browse Bus Rates and Amenities</h2>
<p style="padding-left: 5px; ">Search by Bus Type:<br />
<select name="bustype">
<option selected value="">All Bus Types</option>
<option value="1" >Deluxe Motor Coach</option>
				<option value="7" >Double Decker</option>
				<option value="4" >Entertainer</option>
				<option value="5" >Executive</option>
				<option value="9" >Limo Bus</option>
				<option value="2" >Minibus</option>
				<option value="3" >School Bus</option>
				<option value="0" >Tour Operator</option>
				<option value="6" >Trolley</option>
				<option value="8" >Van</option>
				</select></p>
<p style="padding-left: 5px; ">Departure State / Province:<br />
<select name="state" onChange="buildCity('','');"><option selected value=""> - No state selected - </option>
</select></p>
			
<p style="padding-left: 5px; ">Departure City / Metro Area:<br />
			<select name="city">
			<option value="">Entire State</option>
			</select></p>
			<div id="searchboxrightcol">
<p>Or search by Zipcode:<br /><input type="text" name="zip" size="15"></p>
<p>Browse local rates & inventory. Locate specific bus types</p>
<p><a href="#">Search</a></p>
</div>
<div id="searchbox_footer">
<p>BusRates.com does its best to screen out brokers but cannot guarantee this.</p>
</div>
</div>

<div id="title" class="title_lower_color">
	<div class="title">TITLE</div>
</div>

<div id="main">
  <div class="grouptitle1">Group 1
	 <div class="grouptext1">blah blah blah blah blah blah blah blah
 	 </div>
  </div>
  <div class="grouptitle2">Group 2
     <div class="grouptext2">blah blah blah blah blah blah blah blah
     </div>
  </div>
</div>

body {
	margin-top: 10px;
	margin-right: 10px;
	margin-left: 10px;
}

.title {
	font-family: "Times New Roman", Times, serif;
	font-size: 24px;
	color: #000000;
	font-weight: bold;
	background-color: #CCCCCC;
	border-color: #000000;
	border-bottom-style: solid;
	border-bottom-width: thin;
	width: 100%;
	float: left;
	position: relative;
}

.title_lower_color{
	background-color: #666666;
	border-color: #000000;
	border-left-style: solid;
	border-bottom-style: solid;
	border-right-style: solid;
	border-right-width: thin;
	border-bottom-width: thin;
	border-left-width: thin;
	border-top-style: solid;
	border-top-width: thin;	
	width: 100%;
	height: 40px;
	float: left;
	position: relative;
}
.grouptitle1{
	color: #000000;
	font-style: normal;
	font-family: "Times New Roman", Times, serif;
	font-size: 14px;
	font-weight: bold;
	position: relative;
	background-color: #CCCCCC;
	border-color: #000000;
	border-style: solid;
	border-width: thin;
	margin-top: 10px;
	width: 300px;
	float: left;
}

.grouptitle2{
	color: #000000;
	font-style: normal;
	font-family: "Times New Roman", Times, serif;
	font-size: 14px;
	font-weight: bold;
	position: relative;
	background-color: #CCCCCC;
	border-color: #000000;
	border-style: solid;
	border-width: thin;
	margin-top: 10px;
	margin-left: 10px;
	float: left;
}

.grouptext1 {
	color: #000000;
	font-style: normal;
	font-family: "Times New Roman", Times, serif;
	font-size: 12px;
	font-weight: normal;
	position: relative;
	background-color: #FFFFFF;
	border-color: #000000;
	border-top-style: solid;
	border-top-width: thin;
	width: 300px;
}

.grouptext2 {
	color: #000000;
	font-style: normal;
	font-family: "Times New Roman", Times, serif;
	font-size: 12px;
	font-weight: normal;
	position: relative;
	background-color: #FFFFFF;
	border-color: #000000;
	border-top-style: solid;
	border-top-width: thin;
}

div.float {
    float: left;
    BORDER-RIGHT: #808080 2px solid;
    PADDING-RIGHT: 2px;
    BORDER-TOP: #808080 2px solid;
    PADDING-LEFT: 2px;
    FONT-WEIGHT: lighter;
    FONT-SIZE: medium;
    PADDING-BOTTOM: 20px;
    MARGIN: 16px 2%;
    BORDER-LEFT: #808080 2px solid;
    COLOR: #000000;
    PADDING-TOP: 2px;
    BORDER-BOTTOM: #808080 2px solid;
    HEIGHT: 200px;
    WIDTH: 150px;
    BACKGROUND-COLOR: #ffffff;
    TEXT-DECORATION: none
  }
  
div.float p {
   text-align: center;
   }
div.container {
  border: 2px dashed #333;
  background-color: #ffe;
  }
div.spacer {
  clear: both;
  }

H1>How to create pages</H1>
<P>The headings are used for splitting up the content file. An H1, H2 or H3 heading will dynamically split the document into new pages in the table of contents. An H4-heading is used as a heading within a page. See the following pages...<BR></P>
<P></P>
<DIV class=container>
<DIV class=spacer></DIV>
<DIV class=float><IMG height=100 alt="image 1" src="image1.gif" width=100> 
<P>caption 1</P></DIV>
<DIV class=spacer></DIV>
<DIV class=float><IMG height=100 alt="image 2" src="image2.gif" width=100>
<P>caption 2</P></DIV>
<DIV class=spacer>
<DIV class=float><IMG height=100 alt="image 3" src="http://www.yourline-online.com/demo05/image3.gif" width=100>
<P>caption 3</P></DIV>
<DIV class=spacer></DIV></DIV></DIV>

<style type="text/css">


.main
{
position: relative;
top: 100px;
width: 700px;
background-color: #5577cc;
height: 500px;
}

.floatright{
margin-right: -100px;
float: right;
width: 300px;
height: 300px;
background-color:#339900;
}
</style>

</head>

<body>

<div class = "main">
Main
<div class = "floatright">
Float
</div>
</div>
</body>

<p>The bus will take you to your hotel, where you can leave your luggage and take a shower.</p>
  <p>This day we suggest the Buenos Aires City Tour. Discover one of the most amazing cities in the world. Buenos Aires is a thoroughly modern city with more than 400 years of history. Visit Florida street, one of the most surprising pedestrian streets in South America. You don't want to miss Palermo Soho, the trendiest neighborhood in Argentina, where you will find tourists from all over the Globe;<img src="images/caption10.jpg" alt="Caminito" width="300" height="300" class="floatright" /> visit Puerto Madero, the preferred area for luxury offices and restaurants; and also check out San Isidro, the most exclusive neighborhood in Buenos Aires.</p>
  <p>You will also get to see Argentina's historic buildings, the <em>Casa Rosada</em> (which means "Pink House" and is the President's office), the <em>Obelisco</em> (a huge tower with a lot of history), and some of the oldest, yet best mantained museums and theaters in the world.</p>
  <p>Finish the day with a short visit to Recoleta, the neighborhood of choice for expats in Buenos Aires to have a good time and eat at the best restaurants.</p>
  <h2>Thursday, March 4 - <span class="redsubtitle">Practice + Palermo Soho + Recoleta</span></h2>
  <p>Your team will have a practice in the morning. A complimentary transfer will be available for you and your Tour Manager will help you with any arrangements that you need.<img src="images/caption11.jpg" alt="Rugby practice" class="floatright" /></p>
  <p>In the afternoon you can have <em>Tapas</em> -a Spanish typical dish- in Palermo Soho, a place that is so cool you will never forget it.</p>

.floatright {
	float: right;
	margin-top: 10px;
	margin-bottom: 10px;
	margin-left: 10px;
}

<div>
 <h2 style="display:inline;">HEADER TITLE</h2>
 <div style="float:right; padding:0; margin:0;">
 TEXT HERE + - <br /> etc..
 </div> 
</div>

<div id="container">

<div id="nav">
<a href="#" onclick="changeTab('Home','hcontent');" id="Home">Home</a>
<a href="#" onclick="changeTab('About','acontent');" id="About">About</a>
<a href="#" onclick="changeTab('Services','scontent');" id="Services">Services</a>
<a href="#" onclick="changeTab('Order','ocontent');" id="Order">Order</a>
<a href="#" onclick="changeTab('Contact','ccontent');" id="Contact">Contact</a>
<a href="#" onclick="changeTab('Links','lcontent');" id="Links">Links</a>
</div>

<div id="content">
<noscript>
I noticed you have Javascript disabled. This site will not work correctly unless you have Javascript enabled. Please enable Javascript now.
</noscript>
</div>

...

</div>

div#container {
	position:absolute;
	left:50%;
	top:50%;
	width:760px;
	height:332px;
	margin-left:-380px;
	margin-top:-186px;
	border:#FFFFFF 1px solid;
	}
	
div#nav {
	float:left;
	width:170px;
	padding:0;
	}
div#content {
	text-align:justify;
	width:558px;
	padding:1em;
	color:#000000;
	height:300px;
	overflow:auto;
	/*border:#FFFFFF 1px solid;*/
	}

body {
	margin-left: 0px;
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 0px;
	background-color:#000000;
}

#leftcontent {
	float:left;
	width: 236px;
}

#mainmenu {
	width: 170px;
}

#stats {
	margin-top:inherit;
	width: 205px;
	background-color:#000000;
}

#centercontent {
	voice-family: "\"}\"";
	voice-family: inherit;
	margin-left: 245px;
	background-image:url(images/wow/bg.gif);
	background-repeat:repeat;
}

#rightcontent {
	float:right;
	margin-right:5px;
	width: 236px;
	margin-top:20px;
}

#login {
	margin-top:inherit;
	width: 205px;
	background-color:#000000;
}

#submenu {
	width: 200px;
}
	
#banner {
	voice-family: "\"}\"";
	voice-family: inherit;
}