我一直在构建一个以引导程序为框架的网站，由于某种原因，在一个部分中它不会一直跨越整个屏幕。
下面是它的外观：
和
这是我一直在使用的代码：
<section class="section_area">
<div class="container">
<div class="row-fluid">
<!-- Title-->
<div class="span4 title">
<span class="arrow_left"></span>
<h3>What we do</h3>
<h1>simplify your business processes</h1>
<p>Sollemnes wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip consequat.</p>
</div>
<!-- End Title-->
<!-- Services-->
<div class="span8 services">
<!-- Row-->
<div class="row-fluid">
<!-- Item Service-->
<div class="span6">
<h4 class="text_right">Responsive Desing</h4>
<div class="item_service">
<div class="image_service">
<img src="img/1.png" alt="Image">
</div>
<div class="info_service">
<p>Pellentesque habitant morbi tristique senectus et netus et malesuada.</p>
</div>
<div class="clearfix"></div>
</div>
</div>
<!-- End Item Service-->
<!-- Item Service-->
<div class="span6">
<h4>Retina Desing</h4>
<div class="item_service_right">
<div class="image_service">
<img src="img/2.png" alt="Image">
</div>
<div class="info_service">
<p>Pellentesque habitant morbi tristique senectus et netus et malesuada.</p>
</div>
<div class="clearfix"></div>
</div>
</div>
<!-- End Item Service-->
</div>
<!-- End Row-->
<!-- Row-->
<div class="row-fluid">
<!-- Item Service-->
<div class="span6">
<h4 class="text_right">Full Validated</h4>
<div class="item_service">
<div class="image_service">
<img src="img/3.png" alt="Image">
</div>
<div class="info_service">
<p>Pellentesque habitant morbi tristique senectus et netus et malesuada.</p>
</div>
<div class="clearfix"></div>
</div>
</div>
<!-- End Item Service-->
<!-- Item Service-->
<div class="span6">
<h4>Social Media</h4>
<div class="item_service_right">
<div class="image_service">
<img src="img/4.png" alt="Image">
</div>
<div class="info_service">
<p>Pellentesque habitant morbi tristique senectus et netus et malesuada.</p>
</div>
<div class="clearfix"></div>
</div>
</div>
<!-- End Item Service-->
</div>
<!-- End Row-->
</div>
<!-- End Services-->
</div>
</div>
</section>
<!-- End section area-->
<!-- section area-->
<section class="section_area content_resalt">
<div class="container">
<div class="row-fluid">
<!-- Tabs-->
<div class="span12">
<!-- Nav Tabs-->
<!-- End Nav Tabs-->
<div class="clearfix"></div>
<div class="switcher-panel"></div>
<!-- 1-content -->
<div id="1-content" class="switcher-content set2 show">
<!-- Features -->
<div class="span8">
<h2>Windows Solutions</h2>
<div class="row-fluid feature">
<div class="span4">
<h3>Features</h3>
</div>
<div class="span4">
<h3> Account free </h3>
</div>
<div class="span4">
<h3>Account Premium</h3>
</div>
</div>
<div class="row-fluid feature">
<div class="span5">
<p>Complete Social Marketing Suite</p>
</div>
<div class="span3">
<img src="img/icons/ok.png" alt="Image">
</div>
<div class="span3 premium">
<img src="img/icons/ok.png" alt="Image">
</div>
</div>
<div class="row-fluid feature">
<div class="span5">
<p>Social Network</p>
</div>
<div class="span3">
<img src="img/icons/ok.png" alt="Image">
</div>
<div class="span3 premium">
<img src="img/icons/ok.png" alt="Image">
</div>
</div>
<div class="row-fluid feature">
<div class="span5">
<p>Full Responsive Web Desing</p>
</div>
<div class="span3">
<img src="img/icons/ok.png" alt="Image">
</div>
<div class="span3 premium">
<img src="img/icons/ok.png" alt="Image">
</div>
</div>
<div class="row-fluid feature">
<div class="span5">
<p>Retina Desing</p>
</div>
<div class="span3">
<img src="img/icons/error.png" alt="Image">
</div>
<div class="span3 premium">
<img src="img/icons/ok.png" alt="Image">
</div>
</div>
<div class="row-fluid feature">
<div class="span5">
<p>Python And Django</p>
</div>
<div class="span3">
<img src="img/icons/error.png" alt="Image">
</div>
<div class="span3 premium">
<img src="img/icons/ok.png" alt="Image">
</div>
</div>
<div class="row-fluid feature">
<div class="span5">
<p>Full Documentation And Support</p>
</div>
<div class="span3">
<img src="img/icons/error.png" alt="Image">
</div>
<div class="span3 premium">
<img src="img/icons/ok.png" alt="Image">
</div>
</div>
</div>
<!-- End Features -->
<!-- Title -->
<div class="span4 title_right">
<span class="arrow_right"></span>
<h3>Get started</h3>
<h1>today witha a free trial!</h1>
<h5>30 days free trial | No credit card required | $13/mo after end of trial period.</h5>
<div class="clearfix padding_top_mini"></div>
<a href="#" class="button big">Try Free</a>
<a href="#" class="button big">Buy Now</a>
</div>
<!-- End Title -->
</div>
<!-- End 1-content -->
</div>
<!-- End Tabs-->
</div>
</div>
</section>
<!-- End section area-->
现场版也在这里
希望有人可以帮助