Hi FF enjoyers, just from the title you might see the problem i'm facing.
For some context here's one typical use case : I want to create a vertical line that would match the height of a message. (see photo) Here's a simple message so the vertical light blue line is not that big but it oculd expand if the message was 8 lines long.
The problem i'm facing is that inside FF builder the message itself is in a container with no height, this way the container height match up the entire message displayed dynamicaly. But if i want to put the line taking the max height 100% it expand the container to the entire page. Basicaly i can't make a container with 100% height in a container with no height (waiting for it's children to pop) wich is absolutely logic, no doubt about it.
My question is, since i can't do it this way, do you know a different way ?
