My content wont go into a wrapper

[wr3322]

I can't get my content to go into a wrapper, it just shows on the left side\[code\]<div id="middle"> <div class="wrapper"> <div id="image_rose"><img src="http://stackoverflow.com/questions/13859349/assets/rose.jpg"/></div> <p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo. Quisque sit amet est et sapien ullamcorper pharetra. Vestibulum erat wisi, condimentum sed, commodo vitae, ornare sit amet, wisi. Aenean fermentum, elit eget tincidunt condimentum, eros ipsum rutrum orci.</p> <img src="http://stackoverflow.com/questions/13859349/assets/leef.png" /> <p>Text Input:</p>\[/code\]CSS:\[code\].wrapper{ background-color:#666666; width:900px; margin:0px auto; text-align:left;}#middle{ background-color:#666; width:900px; float:left;}\[/code\]