My site uses the login bar to let visitors log in. At the moment, this is in the header, and set to be 28px from the right. My header has a container within it that has a maximum width of 1920px, so that on standard monitors, the page displays full-width, but on superwide monitors, it doesn't get out of control: the width is fixed to 1920px, and the site just appears centred in very wide browser windows. This all works, except that because the Login Bar is currently not inside the main container within the header, it always appears at the right of the viewport. I can't find a way to move it into the container, so that it's 28px right margin is measured from the container rather than the header itself. Is this possible?