Hello. Awhile back you helped me with putting text with a dark background over an image on our home page at https://www.thumbprintbooks.ca/ That post is at https://theme.co/apex/forum/t/text-with-dark-background-band-over-image-at-bottom-of-image/20145/13.
Recently (probably after upgrading Pro—version 2.1.6 is installed) I noticed that the dark background is sized as originally designed when viewed in Firefox for all devices. 
However, in BOTH Chrome and Edge, the dark background is larger, and the text is top aligned with the background for devices that are WIDER THAN 767 pixels.

The dark background, gold headline with line, and white text are in a column that uses the following global CSS as the class:
.flex-row {
min-height: 100vh;
display: flex;
flex-direction: column;
justify-content: flex-end;
}
The custom inline CSS for the column is:
max-height: 94vh; padding-top: 67vh;
Padding for the row with the background image is set as follows:
For devices 980px and wider, right and left are 25% and bottom is 5%
For devices 768-979px, right and left are 20% and bottom is 5%
For devices 481-768px, right and left are 15% and bottom is 5%
For devices 480px and smaller, padding is 0
For SEO purposes, it is critical to have the headline and text line searchable, so I can’t create the look using Photoshop. In previous versions of Pro, the height of the dark background box relative to the headline and text was displayed consistently across all browsers that I tested.
Is it possible to center the headline and text line vertically in the dark background box?