Show message only when user clicks on show in Markdown

Question

I have a huge text message which I want to show only to people who are interested in more details regarding it. Adding an illustration below

Initial preview

On expanding the message

Need help achieving this using markdown.

Answer 1

you could do this like this one

<details>
<summary> <b>Some title here</b> </summary>
  your long text here
<details>

and if you want it opened by default you could add the attribute open to the details tag like this

<details open>
<summary> <b>Some title here</b> </summary>
  your long text here
<details>