Bootstrap center div stays in long rectangle - html

Question

I have already created this basic web page that has a header with an image and words, then below that header I have 3 blocks of text, I have one last thing to add which is another block of text below the 3 others. This block needs to be centered and extend downward instead of sideways when the text is long.
See layout example.
Here is a live example with lots of text.
Here is my current code
<div class="container-fluid">
<div class="row text-left">
<p>Having trouble viewing this email? View in browser</p>
</div>
</div>
<div class="container-fluid page-header">
<div class="row text-center">
<div class="col-xs-12">
<img src="http://ssiclouddev.azurewebsites.net/Content/Images/Icons/favicon-96x96.png" />
<h1>Susquehanna Software Inc.</h1>
</div>
</div>
</div>
<div class="container-fluid">
<div class="row text-center">
<div class="col-xs-12 col-md-4">
<h3>From: <% =Request.QueryString["From"] %></h3>
</div>
<div class="col-xs-12 col-md-4">
<h3>Email: <% =Request.QueryString["FromEmail"] %></h3>
</div>
<div class="col-xs-12 col-md-4">
<h3>Subject: <% =Request.QueryString["FromSubject"] %></h3>
</div>
</div>
</div>
<div class="container-fluid">
<div class="row text-center">
<div class="col-xs-12">
<div class="col-xs-6">
<h3><% =Request.QueryString["Content"] %></h3>
</div>
</div>
</div>
</div>

Answer 1

Replace
<div class="col-xs-12">
<div class="col-xs-6">
<h3><% =Request.QueryString["Content"] %></h3>
</div>
</div>
With
<div class="col-xs-6 col-xs-offset-3">
<h3><% =Request.QueryString["Content"] %></h3>
</div>

Answer 2

HTML (you shouldn't nest col- classes in another col- class without new row):
<div class="container-fluid">
<div class="row text-center">
<div class="col-xs-6 col-xs-offset-3">
<h3><% =Request.QueryString["Content"] %></h3>
</div>
</div>
</div>
CSS (allow long words to be able to break and wrap onto the next line):
h3 {
word-wrap: break-word;
}

Answer 3

Okay, your example actually is working fine. But because your content is just one massive word it continues outside of the parent. To check this, add this CSS: word-wrap:break-word to your h3.
I suggest using a source of dummy text such as Ipsum Lorem or Bacon Ipsum in future