Shifted column "span4 banners-block"

Desculpe pelo meu inglês.
Não sei porque, mas a coluna fica abaixo e não ao lado.

<div style="background: #fafafa;">[rev_slider main]</div>
<div class="container">
<div class="row banners_top_row">
<div class="span4 banners-block">
<div class="banner banner-transform"><img src="[template_url]/images/1.jpg" alt="" />
<div class="mask">
<h2>Responsive Design</h2>
It is a long established fact that a reader will be distracted by the readable content of page when looking at its layout.

<a class="button" href="http://themeforest.net/item/idstore-responsive-multipurpose-ecommerce-theme/4792186?ref=8theme">Purchase Now</a>

</div>
</div>
<div class="text-banner"><a href="#">
</a>
<h1>Super Flexible Theme</h1>
You will love this theme from the first steps!

You can setup this theme with the same look as on preview in just a couple of clicks

<a class="button small active" href="http://themeforest.net/item/idstore-responsive-multipurpose-ecommerce-theme/4792186?ref=8theme">Purchase Now</a>

</div>
</div>
<div class="span4 banners-block">
<div class="banner banner-transform"><img src="[template_url]/images/2.jpg" alt="" />
<div class="mask">
<h2>Awesome Sliders</h2>
It is a long established fact that a reader will be distracted by the readable content of page when looking at its layout.

<a class="button" href="http://themeforest.net/item/idstore-responsive-multipurpose-ecommerce-theme/4792186?ref=8theme">Purchase Now</a>

</div>
</div>
<div class="text-banner"><a href="#">
</a>
<h1>Responsive Design</h1>
You will love this theme from the first steps!

You can setup this theme with the same look as on preview in just a couple of clicks

<a class="button small active" href="http://themeforest.net/item/idstore-responsive-multipurpose-ecommerce-theme/4792186?ref=8theme">Purchase Now</a>

</div>
</div>
<div class="span4 banners-block">
<div id="last_banner_top" class="banner banner-transform"><img src="[template_url]/images/3.jpg" alt="" />
<div class="mask">
<h2>Unlimited Colors</h2>
It is a long established fact that a reader will be distracted by the readable content of page when looking at its layout.

<a class="button" href="http://themeforest.net/item/idstore-responsive-multipurpose-ecommerce-theme/4792186?ref=8theme">Purchase Now</a>

</div>
</div>
<div class="text-banner">
<h1>Clean Modern Design</h1>
You will love this theme from the first steps!

You can setup this theme with the same look as on preview in just a couple of clicks

<a class="button small active" href="http://themeforest.net/item/idstore-responsive-multipurpose-ecommerce-theme/4792186?ref=8theme">Purchase Now</a>

</div>
</div>
</div>
[etheme_featured][etheme_new title="Latest Products" ]

</div>