# Markdown quick start guide Welcome to HackMD! :tada: https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m970.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m975.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m976.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m962.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m977.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m954.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m955.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m968.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m958.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m966.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m979.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m969.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m971.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m978.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m973.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m951.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m967.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m950.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m942.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m943.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m940.html https://s3.amazonaws.com/arena_images-temp/uploads/31b878b3-fdd6-490f-ab2e-9ae32f041f4a/d_o_w_n_l_o_a_d_c_u_s_t_o_m941.html https://s3.amazonaws.com/arena-attachments/31507303/f984a38cc19bed96724f5c30f9aa2b17.pdf https://s3.amazonaws.com/arena-attachments/31507302/4802614d5a429592be847b78557132f4.pdf https://s3.amazonaws.com/arena-attachments/31507301/4c87d7d2ef629b9455dfb9420d911110.pdf https://s3.amazonaws.com/arena-attachments/31507300/060f5589879284737dbc22ae72d57b85.pdf https://s3.amazonaws.com/arena-attachments/31507299/d4affc2b4ea6574f8807dc6de535f202.pdf https://s3.amazonaws.com/arena-attachments/31507298/ee21708d7db0c135802437b7829400c1.pdf https://s3.amazonaws.com/arena-attachments/31507297/879bc81cc560171b22429e6dbcac7dd5.pdf https://s3.amazonaws.com/arena-attachments/31507296/32c591e7c284db8118120a8875c3fdea.pdf https://s3.amazonaws.com/arena-attachments/31507294/62f2693068619a07306f7711a09c5fef.pdf https://s3.amazonaws.com/arena-attachments/31507295/4348d80f9a0f74f8c2b5b8791a818aa3.pdf https://community.thoracic.org/members/status/show?id=28950564%3AStatus%3A11766 https://sloan.ucr.edu/members/status/show?id=28947924%3AStatus%3A100774 https://zagspace.gonzaga.edu/members/status/show?id=28947944%3AStatus%3A66889 https://www.ssplace.miami.edu/blog/dcat https://educat.xtec.cat/articles/vbr6fh https://communicators.ncsu.edu/members/status/show?id=28949464%3AStatus%3A1379233 https://network.propertyweek.com/blog/qxfht7h https://info.undp.org/docs/dao/UNSP2015/Lists/PostSurvey/Item/displayifs.aspx?ID=106353 https://web.stanford.edu/group/spanlab/cgi-bin/wiki/index.php?title=Qualcomm_halts_snapdragon_dev_kit https://www.egr.msu.edu/nextgen/wiki/index.php/Werwe5er https://colostate.news.blog/2024/10/18/pentagon-explores-ai-deepfake-users-implications-and-ethics/ https://codebeautify.org/htmlviewer/y24f4de8b https://jsbin.com/zeqerageho/edit?html,output https://www.letsdobookmark.com/user/Xz8rflCxL2vh https://melodymix.org/index.php?threads/bdf6rgfgxfg.1371/ https://differ.blog/p/ai-manipulation-potential-d31d57 https://www.thefreeadforum.com/postclassifieds/business-opportunities_2/classifieds_for_free/d31d57_i5757272/classifieds-for-free/wilmington https://www.lifesshortlivefree.com/community/vetted-member-instructions/vdcxvgd-ncgh7-jfdju00/ https://web3devcommunity.com/topic/26171/fg76e54fg https://forum.thecodingcolosseum.com/topic/14755/n5e6hdgxxdfdfh https://www.onfeetnation.com/profiles/blogs/c0l0 https://www.thefreeadforum.com/postclassifieds/business-opportunities_2/classifieds_for_free/c00000000000000l0000000_i5757289/classifieds-for-free/honaunau https://paste.ee/p/DiieT https://jsfiddle.net/ky987f6b/ https://jsitor.com/zXARQpNWDm https://etextpad.com/jzdxwxvp65 https://yamcode.com/mte700-585 https://pastelink.net/zetm4mwt https://paste2.org/BtIfJszI https://glot.io/snippets/h0y49csz4b https://ctxt.io/2/AAB4fOUkFg https://terraria.curseforge.com/paste/428787a1 https://controlc.com/6294eea7 https://www.wowace.com/paste/07b6a512 https://wow.curseforge.com/paste/4d8da2a4 https://paste.feed-the-beast.com/view/421795f8 https://paiza.io/projects/gZ2bsNsfhXWkwxzzXEUy3g Writing in Markdown is easy. It's just **using plaintext to format your text**. Here are some Markdown elements that you may find useful. Add them to your writings to give them nice and helpful structures. ## Frequently used elements ```python=9 print('Hello, world!') # See if you can set arbitrary line number or # change syntax highlighting for different language # in this code block. ``` - unordered list 1. ordered list - [ ] task > quote [Link](https://hackmd.io/c/tutorials) ## Styles of text **bold** _italics_ `literals` ~~strikethrough~~ ==highlight== 21^th^ Centuary H~2~O ## Image ![HackMD logo](https://presskit.hackmd.io/Default/HackMD_LOGO_vertical_white.png =200x200) Just drag and drop an image anywhere in the editor, HackMD will render it for you. You can change the size of the above image. [See how →](https://hackmd.io/s/features#Image-Upload). ## Headers Put `#` at the beginning of a line, it becomes a header. Three `#`s creates a level 3 header, like this: ### A Level 3 Header ### Paragraph As intuitive as it is, it's worth mentioning that leaving an empty line (by pressing <kbd>Enter</kbd> or <kbd>Return </kbd>) lets you separate paragraphes. ## Table | Column 1 | Column 2 | Column 3 | |:-------- |:--------:| --------:| | Some | thing | nice | | Text | Text | Text | Drawing tables with Markdown can be messy, so we created a tool to boost your productivity. Click on any cell in the table above and note the table tool appears in the toolbar on top of the editor changes. <img style="display:block;margin:48px auto;padding:1px;border:1px #eee;width:100%;" src="https://hackmd.io/_uploads/Sypi9dluY.png" /> [Learn more about table tool here →](https://hackmd.io/c/tutorials/%2Fs%2Fhow-to-create-table) ## Extensions Although the following extensions are not included in regular Markdown, they are widely accepted as useful elements of documentations. Humans can read them rather easily, so feel free to use them in your notes. ### Write formulas with MathJax $$ e^{ \pm i\theta } = \cos \theta \pm i\sin \theta $$ ### Draw UML diagrams to aid communication ```mermaid graph LR Work --> flow -- like --> this ``` HackMD supports many other UML diagrams. [Read more →](https://hackmd.io/c/tutorials/%2Fs%2Ffeatures#UML-Diagrams) ### Table of Content You can type `[toc]` to add a table of content of your note as below: [toc] :::info :bulb: **Navigating Menu** You can bring up the table of contents by clicking the `☰` icon at the bottom-left of the View pane: <img style="display:block;margin:48px auto;padding:1px;border:1px #eee;width:50%;" src="https://hackmd.io/_uploads/SkV-qOgOF.gif" /> ::: ### Admonitions Use these text boxes to emphasize important ideas. Can you change those emojis? :::warning :warning: Warnings ::: :::danger :radioactive_sign: Danger ::: :::info :information_source: Info ::: :::success :thumbsup: Success ::: # Why Markdown? Markdown describes the structure of the content explicitly with plain text, almost like writing in 'code', while keeping it human readable. This has two major advantages: 1. You can **focus on the content** as you write and leave styling and structures for later. 2. Writing in plaintext means your content is **portable** to any platform (device, operating system, or app). It may look somewhat different in each rendering, yet the content is all the same and **no vendor lock-in**. # Further Questions In our [tutorial book](https://hackmd.io/c/tutorials/%2Fs%2Ftutorials), you will find detailed guides to all main features of HackMD that boost your productivity. You will even learn how to [publish](https://hackmd.io/c/tutorials/%2Fs%2Fhow-to-publish-note) a [book](https://hackmd.io/c/tutorials/%2Fs%2Fhow-to-create-book)! :100: Feel free to ping us for questions: - :mailbox: support@hackmd.io - Mention `@hackmdio` on [Twitter](https://twitter.com/hackmdio)