When you insert a link in VK, what does he take as a picture for her?

Question

css

VK takes the wrong pictures. First of all, she is not the first. Secondly, it is not in the img tag, but in the background of the element.
I read the docks VK link
I add a tag to the site

<link rel="image_src" href="http://mysite.com/mypic.jpg" />

nothing changes. Tried google meta etc.
What could be the problem?

Answer 1

If the page implements support for the Open Graph protocol , then it takes the image from the tag
If not, then the first one that comes across.

Answer 2

link og image usually