How to customize arrow pointing down effect on the block header?

Hi,

That is block header template 4 – https://demo.tagdiv.com/newspaper/block-header-4/
A block header template can be selected in general, in the theme panel
– http://prntscr.com/m8x6nc
Per block it can be done in the composer – http://prntscr.com/m8x78r
The per block setting will override the general setting.

So you want to customize it so that the bottom arrow be in the middle of the block title, something like this would work – http://prntscr.com/m8x5qq

Enter this code in Theme panel->Custom code CSS section

.td_block_template_4 .td-block-title>*:before {
left: 0;
right: 0;
}

All elements that use this block header will be affected by this customization. Let me know if you have more questions.

Thanks