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         </header>
         <section id="intro">
             <p><span>PEX</span> is a collection of JavaScript modules the combination of which becomes a powerful 3D graphics library for the desktop and the web.</p>
-            <p>Pex is build by <a href="http://variable.io">Variable</a> – a generative design studio in London – and friends.<br/> Pex is <a href="http://github.com/pex-gl/">open-source</a>. </p>
+            <p>Pex is built by <a href="http://variable.io">Variable</a> – a generative design studio in London – and friends.<br/> Pex is <a href="http://github.com/pex-gl/">open-source</a>. </p>
         </section>
         <section id="content">
             <ul>