Markdown Cheatsheet

# Heading 1

## Heading 2

### Heading 3

#### Heading 4
##### Heading 5
###### Heading 6

**bold text** or __bold text__

*italic text* or _italic text_

***bold and italic*** or ___bold and italic___

~~strikethrough text~~

`inline code`

> This is a blockquote
> It can span multiple lines

- Item 1
- Item 2
  - Nested item
  - Another nested item
- Item 3

1. First item
2. Second item
3. Third item
   1. Nested item
   2. Another nested item

- [x] Completed task
- [ ] Incomplete task
- [ ] Another task

[Link text](https://example.com)

[Link text](https://example.com "Title on hover")

![Alt text](https://example.com/image.jpg)

![Alt text](https://example.com/image.jpg "Image title")

```
code line 1
code line 2
code line 3
```

```javascript
const greeting = 'Hello World';
console.log(greeting);
```

```python
def hello():
    print("Hello World")
```

| Header 1 | Header 2 | Header 3 |
|----------|----------|----------|
| Row 1    | Data     | Data     |
| Row 2    | Data     | Data     |

| Left | Center | Right |
|:-----|:------:|------:|
| L    | C      | R     |
| Left | Center | Right |

---
or
***
or
___

Here's a sentence with a footnote[^1].

[^1]: This is the footnote content.

Term 1
: Definition 1

Term 2
: Definition 2a
: Definition 2b

The HTML specification is maintained by W3C.

*[HTML]: Hyper Text Markup Language
*[W3C]: World Wide Web Consortium

:smile: :heart: :thumbsup: :rocket:

\* Not italic \*
\# Not a heading
\[Not a link\]

<div style="color: red">
  Custom HTML content
</div>

```mermaid
graph TD;
    A-->B;
    A-->C;
    B-->D;
    C-->D;
```