# Markdown [](https://hackmd.io/0jMhyDOQTmuc8rWYZjMXmA) # Header 1 ## Header 2 ### Header 3 #### Header 4 ##### Header 5 ###### Header 6 `inline code` ```javascript // Code blocks function add(x, y) { return x + y; } ``` **bold** and _italic_ and ~~strikethrough~~ [link to crossnote issues](https://github.com/0xGG/crossnote/issues) image:  KaTeX Math: $\left(\begin{array}{cc} \frac{1}{3} & x\\ {\mathrm{e}}^x & x^2 \end{array}\right)$ $$x^n + y^n = z^n$$ Table: | Tables | Are | Cool | | -------- | :-----------: | -----: | | col 1 is | left-aligned | \$1600 | | col 2 is | centered | \$12 | | col 3 is | right-aligned | \$1 | > Blockquote is here 1. Ordered list item 1 2. Ordered list item 2 - Unordered list item 1 - Unordered list item 2 * [ ] Task lists * [ ] Task lists 2 :smiley: Emoji is also supported. --- Here is a footnote reference,[^1] and another.[^longnote] [^1]: Here is the footnote. [^longnote]: Here's one with multiple blocks.
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