What is a “good practice” when dealing with responsive design?
Let’s take an extreme case – I have a block containing <H1>. In order to work in responsive layout, I have two version of same block — one for desktop devices and tablets and one for mobiles. One of the blocks is hidden using CSS on relevant device.
The problem is that both versions are always present in the page source code and I effectively have duplicated <H1> which is not good for SEO.
So, what is the good practice in…