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   <div class="center">
     <h1>Meet Minetest.</h1>
     <h3>A free, open source voxel game engine and game. Fully extendable. You are in control.</h3>
-    <p><a class="btn btn-primary" href="#about">Tell me more</a> <a class="btn btn-success" href="/downloads/">Download</a></p>
+    <p><a class="btn btn-primary btn-lg" href="#about">Tell me more</a> <a class="btn btn-success btn-lg" href="/downloads/">Download</a></p>
     <p><small><strong>News:</strong> 0.4.13 released (August 20<sup>th</sup> 2015)</small></p>
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