Responsive text over image vertically centered
<p>I have my text positioned in an image with the margin-top: - px in 2 columns.
See it here: <a href="http://nlbure-govobanda.savviihq.com/bureau/" rel="nofollow">http://nlbure-govobanda.savviihq.com/bureau/</a></p>

<p>I want to know how  to center it vertically on every screen? So it automatically scales to the middle of the image, no matter what device.</p>

<p>Hope someone can help me out. </p>