newb html question - Divs nesting together

[stewart_ch]

I'm really new to this so I don't know what I'm doing wrong. If you look at this page you can see how the images are nesting together instead of stacking beneath one another. http://home.trekadoo.com/en/about/ I can get them to nest under one another if I use a bunch of <br> tags. But that's bad structure right? Is this fixed in the HTML or is it a CSS issue. here is the HTML: <div class="container"><div class="center"><div class="entry"><div><h3>Passion runs Deep</h3><p>For us, building Trekadoo isn't work, it's our passion. We strive to create the highest quality online experience by combining intriguing interactions and rock-solid functionality.</p> </div><di><h3>The Team Behind Trekadoo</h3></di><div class="team"><img class="alignleft" src="/static/images/avatars/ava01.gif" alt="" /><h3>Kathryn Christensen</h3> <strong><span class="position">CEO</span></strong><p>With over 12 years in the vacation rental industry, her knowledge base and connections have positioned her perfectly to lead Trekadoo in the future.</p></div><div class="team"><img class="alignleft" src="/static/images/avatars/ava02.gif" alt="" /><h3>Tom Christensen</h3> <strong><span class="position">CTO</span></strong><p>Tom has over 16 years of experience programing and is a key element of Trekadoo product (i.e. he makes everything work).</p></div><div class="team"><img class="alignleft" src="/static/images/avatars/ava03.gif" alt="" /><h3>Stewart Christensen</h3> <strong><span class="position">COO</span></strong><p>Stewart is focused on creating partnerships with others in the vacation rental industry and ensuring that the product meets the needs of the customers.</p></div></div></div></div> any help?

[niche]

USe float for your positioning and Firebug or equivalent if you don't already