::: spoiler A spoiler. :::

::: spoiler

A spoiler.

Hello.

My name is :::

<spoiler>Testing</spoiler>

::: dropdown a dropdown

a dropdown.

:::

<details>

<summary>Tips for collapsed sections</summary>

You can add a header

You can add text within a collapsed section.

You can add an image or a code block, too.

   puts "Hello World"

</details>