Need CSS Expert please :)

<style type = "text/css">
body{
	margin: 0px;
	font-family: Verdana;
	font-size: 10px;
	background-color: #FFFFFF;
}

.container {
	width: 500px;
	height: auto;
	background-color: #fff;
	margin:0 auto;
	margin-top: 20px;
}

.menu {
	width: 100%;
	height: 13px;
	color: #d4c8cc;
	border-color: #ff3288;
	border-width: 12px;
	border-style: solid;
}

.header {
	width: 1000px;
	height: auto;
	
}

.promotions {
	border-bottom: 10px solid #000;
	width: 1000px;
	height: auto;
}

.content1 {
	background-color: #fff;
	width: 200px;
	height: 50%;
	margin-top: 10px;
	margin-right: 20px;
	float: left;
	border-left-style: dashed;
	border-left-color: #ff3bd6;
}

.content2{
	
	width: 550px;
	height: 100%;
	float: right;
	position:static;
	margin-top: 10px;
	background-color: #fff;
	border-left-style: dashed;
	border-left-color: #5cf900;
	padding-left: 10px;
}

</style>

 .content2 {[URL="http://www.mac-forums.com/forums/"]site (line 57)[/URL]
background-color:#FFFFFF;
border-left-color:#5CF900;
border-left-style:dashed;
float:right;
height:100%;
margin-top:10px;
padding-left:10px;
position:static;
width:50%;
}

.content1 {[URL="http://www.mac-forums.com/forums/"]site (line 46)[/URL]
background-color:#FFFFFF;
border-left-color:#FF3BD6;
border-left-style:dashed;
margin-right:20px;
margin-top:10px;
}

<div class="contentholder">
<div class="content2">
  <p align="left"><strong><img width="400" height="100" src="images/For Web/contact_header.jpg"/><br/>
  </strong>Hey, please use the below form or other methods to contact our team, whether it be for an online quote, a thanks, congratulations, constructive criticism or a random chat. We really do look forward to your message. We aim to get back to every e-mail sent to us (not including dirty spam) within 24 hours. </p>
  <form id="form1" name="form1" method="post" action="">
    <p>First Name* : 
       <input type="text" name="textfield"/>
    </p>
    <p>Last Name : 
      <input type="text" name="textfield2"/>
    </p>
    <p>E-mail Address* : 
      <input type="text" name="textfield3"/>
    </p>
    <p>Contact Number : 
      <input type="text" name="textfield4"/>
    </p>
    <p>Best Time to Call You?<br/>
      <select name="select">
        <option value="nine and ten">9.00 - 10.00</option>
        <option value="ten and eleven">10.00 - 11.00</option>
        <option value="eleven and twelve">11.00 - 12.00</option>
        <option value="twelve and one">12.00 - 13.00</option>
        <option value="one and two">13.00 - 14.00</option>
        <option value="two and three">14.00 - 15.00</option>
        <option value="three and four">15.00 - 16.00</option>
        <option value="four and five">16.00 - 17.00</option>
        <option value="five and six">17.00 - 18.00</option>
        <option value="six and seven">18.00 - 19.00</option>
        <option value="seven and eight">19.00 - 20.00</option>
        <option value="eight and nine">20.00 - 21.00</option>
      </select>
</p>
    <p>How many pages will you require : 
      <input type="text" name="textfield5" size="5" maxlength="2"/>
    </p>
    <p> </p>
    <p> </p>
    <p> </p>
  </form>
  <p> </p>
  <p> </p>
  <p> </p>
  <p> </p>
  <p> </p>
  <p> </p>
</div>
<div class="content1">
  <p>Hmm</p>
  <p>Hmm</p>
  <p>Hmm</p>
  <p>Hmm</p>
  <p>Hmm</p>
  <p>Hmm</p>
</div>  
</div>