https://jsfiddle.net/o207fo2L/
I want to move the menu and the traveling block 30 pixels down, that is, the button should be lower and the menu block itself too. I tried to change the top parameter, but for some reason it does not affect anything. It seemed to me that in the case of a fixed element is fixed on the visible area of the screen and they can be moved using the parameters top left. Moreover, if the top parameter is removed, the button will generally shift to the left. Moreover, if you write
top: 15px; bottom:150px; That shift will nevertheless be, however, apparently, precisely at the lower boundary of the element. Why so, who can explain all this?
And yet, it may be better to use the margin-top to shift down, since there will be a header at the top?