How to move the menu down in chrome on android if everything is fine in plain chrome?

Question

css

So, a very strange thing is happening: the block with the menu, which is located in the header of the site (whose height is 100vh) will just indent from the bottom.
In more detail, the menu in chrome is displayed normally and, with absolute positioning, is at the bottom.
And in the mobile version it rises a little.
Like this? And how to solve this problem?

Answer 1

parent header`a {
position: relative
}
header{
position: absolute
bottom: 0
left: 0}