Add the following javascript code just before the end of the body tag.

<script type="text/javascript">
    (function () {
        var nb = document.createElement('script'); nb.type = 'text/javascript'; nb.async = true;
        nb.src = 'http://s.prabir.me/nuget-button/0.2.1/nuget-button.min.js';
        var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(nb, s);
    })();
</script>

Then add the following html code to get the nuget button rendered.

Full Stretch with link (default)

<pre class="nuget-button">Install-Package Facebook</pre>

Install-Package Facebook

Full Stretch with link disabled (same as seen in nuget.org)

<pre class="nuget-button" data-nugetbutton-link="false">Install-Package AzureToolkit</pre>

Install-Package AzureToolkit

Fixed Width

<div style="width: 420px;"><pre class="nuget-button">Install-Package SimpleJson</pre></div>

Install-Package SimpleJson

Minimal Required Width

<div style="float:left;"><pre class="nuget-button">Install-Package FluentHttp.Core</pre></div><div style="clear: left"></div>

Install-Package FluentHttp.Core

Custom size with minimal required width

<div style="float:left; font-size:0.5em"><pre class="nuget-button">Install-Package FluentHttp.Core</pre></div><div style="clear: left"></div>

Install-Package FluentHttp.Core

Redirect to custom link

<pre class="nuget-button" data-nugetbutton-link="http://nuget.prabir.me">Install-Package Facebook</pre>

Install-Package Facebook