Ese codigo tiene MUCHOS errores, te recomiendo que utilises UL no tantos DIVs para hacer algo tan simple.
Este es un ejemplo que me tomo 10 minutos.
Código:
#ContentColumn {
width: 920px;
height: 860px;
position: relative;
margin: 0 auto;
background: #ccc;
border: solid 5px #999;
padding: 20px;
}
.Columna1 {
display:block;
position: absolute;
left:20px;
top:20px;
list-style: none;
width: 350px;
}
.Columna1 li {
display:block;
width: 350px;
margin-bottom:20px;
}
.Columna2 {
display:block;
position: absolute;
right: 20px;
top:20px;
list-style: none;
width: 350px;
}
.Columna2 li {
display:block;
width: 350px;
margin-bottom:20px;
}
Código HTML:
<div id="ContentColumn">
<ul class="Columna1">
<li>
<h3>VISION</h3>
<img src="images/vision.gif" alt="vision" />
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting</p>
</li>
<li>
<h3>VISION</h3>
<img src="images/vision.gif" alt="vision" />
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting</p></li>
<li>
<h3>VISION</h3>
<img src="images/vision.gif" alt="vision" />
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting</p>
</li>
</ul>
<ul class="Columna2">
<li><h3>VISION</h3>
<img src="images/vision.gif" alt="vision" />
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting</p></li>
<li><h3>VISION</h3>
<img src="images/vision.gif" alt="vision" />
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting</p></li>
<li><h3>VISION</h3>
<img src="images/vision.gif" alt="vision" />
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting</p></li>
</ul>
</div>