StackAt jQuery Plugin
By StackAt makes it easy to manage responsive content on your webpage.
Align your content horizontally on large screens and have it stack on smaller screens.
Easy to configure the stack threshold and the stacking order. Read the full documentation at: StackAt
Download:
Installation:
<link href="js/StackAt/stackAt.css" rel="stylesheet"> <script src="js/StackAt/stackAt.js"></script>
Left/ Right 50/50 Split:
<div class="stackAt" stackAt="980">
<div class="width:50%; float:left">Left half</div>
<div class="width:50%; float:left">Right half</div>
</div>