How to hide list or multi-line text behind anti-spoiler?

Question

This comment (last parts) seems to be explaining everything:

(...) it seems, that anti-spoiler can hide only one-line sentence. Breaking sentences into more than one line or trying to hide lists produces a very strange and not looking good effect.

Is it possible to use anti-spoiler tag (>!) to hide a list or block of text? Or what am I doing wrong?

I tried both with unordered list and with "converting" it into multi-line block of text, replacing "dots" with "a)", "b)", "c)" etc. All for nothing -- any attempt, that I undertook ended in converting multi-line block of text or list into single line (hidden behind anti-spoiler).

What am I missing?

Answer 1

You have to use HTML tags.

I’m not quite sure why the regular Markdown formatting works in blockquotes but not in spoiler blocks; I dug into it a while back but never got very far with it. The limited subset of HTML supported by SE mostly just works in spoiler blocks.

Examples:

• For linebreaks, use <br>:

  >! This is a spoiler block <br> with multiple lines <br> of text
  

  This is a spoiler block
  with multiple lines
  of text

• For paragraphs, use a double <br>:

  >! My first paragraph. <br><br> Another paragraph. Such words.
  

  My first paragraph.
  
  Another paragraph. Such words.

  I have used <p> and </p> tags in the past, although I have a vague recollection that it broke some spoiler markup on mobile.

• For lists, use <ul> and <ol>.

  >! My example list has
  >! <ol>
  >! <li>a first item</li>
  >! <li>and another item</li>
  >! <li>and a final item</li>
  >! </ol>
  

  My example list has

  1. a first item
  2. and another item
  3. and a final item

Answer 2

@alexwlchan's answer gives one nice solution, but you don't necessarily have to use HTML tags for linebreaks and paragraphs. It's enough to put two spaces at the end of each line, like this:

>! one line  
>! another line  
>!  
>! after a blank line

which yields the following output:

one line
another line

after a blank line

However, this doesn't work to give bulletpoints or list formatting within a spoiler block, for which see Alex's answer.

---

On a related note, to get get separate spoiler blocks with nothing in between use either <nbsp/> or <!-- ---> in between the two blocks.

>! one spoiler  

  <nbsp/>

>! another spoiler.

yields

one spoiler

another spoiler.