Use # for headers:
# H1 Header
## H2 Header
### H3 Header
*Italic text*
**Bold text**
***Bold and italic***
~~Strikethrough~~
- Unordered item
- Nested item
- Another item
1. Ordered item
2. Second item
- [x] Done
- [ ] To do
[Link text](https://example.com)

Inline code and syntax-highlighted code blocks:
`Inline code`
```javascript
// Code block
console.log('Hello, world!');
```
| Column 1 | Column 2 |
| -------- | -------- |
| Row 1 | Data |
| Row 2 | Data |
> A blockquote
> [!NOTE]
> Note alert
> [!WARNING]
> Warning alert
Add a horizontal rule:
---
| Column 1 | Column 2 |
| -------- | -------- |
| Row 1 | Data |
| Row 2 | Data |
Text with a footnote[^1].
[^1]: The footnote definition.
:tada: :rocket: :heart:
`#0969DA` `rgb(9, 105, 218)`
<sub>subscript</sub>
<sup>superscript</sup>
<kbd>Ctrl</kbd> + <kbd>C</kbd>
<details><summary>Spoiler</summary>
Hidden content.
</details>