Why does this div not grow the div container?

[Josh_Carrol]

The box \[code\]section.box-products {\[/code\]has all the \[code\]section.box-products ul li.item { \[/code\]elements in it but even if the \[code\]<li>\[/code\] count increases the box-products div is not increasing in height. Why?Example: http://www.yolcu-iskender.com/aeki/