Is it possible to set the screen orientation for mobile devices from a web page?

Question

Adaptive design

That is, for example, so that when you open a site with a screen that is less than, say, 400px wide, the orientation changes to horizontal.

Answer 1

Wait a minute :) Usually the task is exactly the opposite - to understand the orientation (landscape or portrait) by orientation and slip your own rules. And the width of all articles abound. Well, the specification , of course.