A Grid System for mobile and desktop with Bootstrap
columns are simply stacked in smaller devices.View full page demo
See the Pen a-grid-system-for-mobile-and-desktop-with-twitter-bootstrap-3 by w3resource (@w3resource) on CodePen.
Previous: tacked on mobile devices and tablet devices (the extra small to the small range) and becomes horizontal on desktop (medium) devices.
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What is the difficulty level of this exercise?