The only method I'm aware of to place a layer on top is by using position: absolute.
https://i.sstatic.net/R4j8i.jpg
(favoring top, disliking bottom)
However, this approach often prevents dynamic scaling with the rest of the page.
You can attempt some width adjustments like width: calc(62% - 60px);
, or develop a script for size calculation.
Yet, is there truly no way to overlay a layer and still have it scale along with the page?