Wanting to highlight parts of my text, intended to be read at second reading, by an inexpensive method in packages, I want to set up an environment that would put points at the beginning and end of the line, preferably at the margins of the environment. I obviously want to be able to include in this environment to create all kinds of texts or mathematical objects, like figures, theorems, footnotes ... in particular boxes produced with tcolorbox and some other environments... so the solution must be not based on any package I think, and especially not using tcolorbox or another package producing boxes !
I give an example of what I want to create, which I made by adding \dotfill, at the beginning and at the end of the text, while adding points at the beginning and end of the line thanks to \hfill.
I actually want to create a, say \vdotfill{text}, environment, based on the idea of the \dotvfill command, included in the answer of the following question vertical dotfill
and then put my text between \dotfill up and down, and between some \vdotfill between right and left. Any ideas ?



tcolorbox. – Henri Menke Apr 30 '18 at 06:06\tcbbreakallow break a nested tcolorbox manually (even nested). – Fran Apr 30 '18 at 21:49enforce breakableof yourdottedenvironment, and the command\tcbbreak. It only remains the problem that all this could not be automated.. but it can be done with a little of attention. Thanks – Faouzi Bellalouna May 01 '18 at 04:51left=-3mm,right=-3mm,extrude right by=3mm,extrude left by=3mm,to obtain the original pagination, and at this moment, the command\tcbbreakhas no effect. Why and how can I make it available with these kind of options ? Thanks – Faouzi Bellalouna May 01 '18 at 05:18enforce breakable) and\tcbbreakstill work, so your problem seem more complex than that. Anyway I would look for a solution based on contents design to avoid break anything except (very occasionally) some main boxes. Note that even the tcolorbox manual warn you against this option that exist for backward compatibility and "usually gives you a mess of shattered boxes" . – Fran May 01 '18 at 07:43dottedenvironmentfor me with this option is as said the doc of tcolorbox,For an unbreakable box, \tcbbreak is identical to insert \par, i.e. it just starts a new paragraph.– Faouzi Bellalouna May 01 '18 at 11:13