How do I made header transparent for blog posts?

In our themes, the option to set a transparent header on blog singles is not available because Elementor is only able to be active on the blog content section. However it's something that we have on our roadmap to change in a future release.

We have a workaround that will make the main header transparent for all blog posts but I needs more testing. Feel free to try it out.

@media (min-width:768px) {
	body.single-post > header.banner:not(.headhesive--clone) {
		background-color: transparent;
		position:absolute;
		width:100%
	}
}

Custom CSS can be added into your child theme, or under Appearance > Customize > Additional CSS.

It's not 100% ready yet but you can try to play around with it.