<div>
Try using relative margin. See an example &nbsp;at <a href="https://jsfiddle.net/FranIg/2tmvvqoj/" rel="ugc">https://jsfiddle.net/FranIg/2tmvvqoj/</a><br />
<br />

<pre><code id="code-20-40949051-1">.related-product-box {
	padding:1%;
	width:24%;
	text-align:center;
	float:left;
        margin: 3%;
}</code></pre>
</div>


Try using relative margin. See an example  at https://jsfiddle.net/FranIg/2tmvvqoj/ [https://jsfiddle.net/FranIg/2tmvvqoj/]



.related-product-box {
	padding:1%;
	width:24%;
	text-align:center;
	float:left;
        margin: 3%;
}

<div>
<div class="content wysiwyg-content">
I have a section of a page that can have up to five boxes across that contain dynamic content. &nbsp;Right now I have the bo class floating left. &nbsp;However, if I have 1, 2 or 3 boxes I want them to center on the page, not float. &nbsp;How do I do that?<br />
<br />

<pre><code id="code-10-28708980-1">.related-product-box {
	padding:1%;
	width:23%;
	text-align:center;
	float:left;
}</code></pre>
</div>
</div>


I have a section of a page that can have up to five boxes across that contain dynamic content.  Right now I have the bo class floating left.  However, if I have 1, 2 or 3 boxes I want them to center on the page, not float.  How do I do that?

(CODE)

CSS Center align Divs

Cascading Style Sheets (CSS) is a language used for describing the look and formatting of a document written in a markup language. Usually used to change web pages and user interfaces written in HTML, it can also be applied to any kind of XML document. CSS is designed primarily to distinguish the content of a document from its presentation.

Bootstrap is a free and open-source collection of tools for creating websites and web applications. It contains HTML- and CSS-based design templates for typography, forms, buttons, navigation and other interface components, as well as optional JavaScript extensions. It aims to ease the development of dynamic websites and web applications. Bootstrap is a front end web framework, that is, an interface for the user, unlike the server-side code which resides on the "back end" or server.