I have used the tips given here for related posts. But I need some help in 2 aspects –
1) My words Related Post is not center aligned
2) Also the grey box is also limited (i guess by the container of the post) – is there a way to make it end to end?
I just had another look and unfortunately there isn’t a good way to make just that section full width is you need to position it above comment.
To achieve that, you’d basically need to set the content container width to full, then rebuild the section above using the Container blocks from GenerateBlocks to make the content above contained.