Responsive

<script src="/__prepros.js"></script>
<div _margin="1 md:2 xl:5">
  <!-- Default margin 1 -->
  <!-- Medium margin 2 -->
  <!-- Very large margin 5 -->
</div>

<div _font="center xl:right">
  <!-- Default text align center -->
  <!-- Very large text align right -->
</div>

<div _bg="red lg:blue">
  <!-- Default background color red -->
  <!-- Large background color blue -->
</div>