Permission change?

Question

css

Hello!
I would like to ask the following question: Why do some sites, when the browser window is reduced (on a PC), adaptability is visible and it will be seen how the site looks on mobile devices, and there are sites that simply have a horizontal scroll when the window is reduced, although when loading it on mobile . does it adapt to the device?

Answer 1

Sites that change appearance when the window changes use media queries in the styles @media htmlbook.ru/css/value/media , and other sites using js , you can use either ( matthewhudson.me/projects/device.js/) or php define device and apply the required styles

Answer 2

options how to make the adaptability of pieces 4 offhand come to mind. Why, as you describe, it's hard to say without specifics.

Answer 3

Different parameters are set through @media : in the first case, the screen width is set to change, and in the second, different display devices, as an option.

Answer 4

For example, a page might have a full-width slider that only calculates dimensions on onLoad. As a result, a block with a fixed width is formed and bursts the page.