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Style Guide

You can write content using GitHub-flavored Markdown syntax. Markdown is a way to style text on the web. You control the display of the document; formatting words as bold or italic, adding images, and creating lists are just a few of the things we can do with Markdown. Mostly, Markdown is just regular text with a few non-alphabetic characters thrown in, like # or *.

Markdown Examples#

This page will help you learn about the Markdown used in the Cardano Developer Portal, but the list is not intended to be exhaustive. Read the docusaurus Markdown features for more examples.

Let's start with the basics:

Emphasis, aka italics, with *asterisks* or _underscores_.
Strong emphasis, aka bold, with **asterisks** or __underscores__.
Combined emphasis with **asterisks and _underscores_**.
Strikethrough uses two tildes. ~~Scratch this.~~
You can even [link to the Forum!](

Emphasis, aka italics, with asterisks or underscores.

Strong emphasis, aka bold, with asterisks or underscores.

Combined emphasis with asterisks and underscores.

Strikethrough uses two tildes. Scratch this.

You can even link to the Forum!


In the developer portal, you will often have to display code. You can display code with different syntax highlighting:

```javascriptvar s = 'JavaScript syntax highlighting';alert(s);```
var s = 'JavaScript syntax highlighting';alert(s);


You can use tabs to display code examples in different languages. For example:

import Tabs from '@theme/Tabs';import TabItem from '@theme/TabItem';
<Tabs  defaultValue="js"  values={[    {label: 'JavaScript', value: 'js'},    {label: 'PHP', value: 'php'},    {label: 'Python', value: 'py'},  ]}>  <TabItem value="js">
    ```js      function helloWorld() {        console.log('Hello, world!');      }    ```
  </TabItem>  <TabItem value="php">
    ```php      <?php echo '<p>Hello, world!</p>'; ?>    ```
  </TabItem>  <TabItem value="py">
    ```py    def hello_world():      print 'Hello, world!'    ```
function helloWorld() {  console.log('Hello, world!');}

Note that the empty lines above and below each language block (in the *md file) is intentional.

Synching tab choices#

You can also switch multiple tabs at the same time based on user input:

<Tabs  groupId="operating-systems"  defaultValue="win"  values={[    {label: 'Windows', value: 'win'},    {label: 'macOS', value: 'mac'},    {label: 'Linux', value: 'linux'},  ]}><TabItem value="win">Use Ctrl + C to copy.</TabItem><TabItem value="mac">Use Command + C to copy.</TabItem><TabItem value="linux">Use Ctrl + C to copy.</TabItem></Tabs>
<Tabs  groupId="operating-systems"  defaultValue="win"  values={[    {label: 'Windows', value: 'win'},    {label: 'macOS', value: 'mac'},    {label: 'Linux', value: 'linux'},  ]}><TabItem value="win">Use Ctrl + V to paste.</TabItem><TabItem value="mac">Use Command + V to paste.</TabItem><TabItem value="linux">Use Ctrl + V to paste.</TabItem></Tabs>
Use Ctrl + C to copy.
Use Ctrl + V to paste.

Video embedding#

Use this code to embed YouTube videos:

<iframe width="100%" height="325" src="" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture fullscreen"></iframe>


Colons can be used to align columns:

| Tables        |      Are      |   Cool || ------------- | :-----------: | -----: || col 3 is      | right-aligned |  $1600 || col 2 is      |   centered    |    $12 || zebra stripes |   are neat    |     $1 |
col 3 isright-aligned$1600
col 2 iscentered$12
zebra stripesare neat$1

There must be at least 3 dashes separating each header cell. The outer pipes (|) are optional, and you don't need to make the raw Markdown line up prettily. You can also use inline Markdown.

| Markdown | Less      | Pretty     || -------- | --------- | ---------- || _Still_  | `renders` | **nicely** || 1        | 2         | 3          |

Inline HTML#

Inline HTML is basically possible, but should be avoided for various reasons.

<dl>  <dt>Definition list</dt>  <dd>Is something people use sometimes.</dd>
  <dt>Markdown in HTML</dt>  <dd>Does *not* work **very** well. Use HTML <em>tags</em>.</dd></dl>
Definition list
Is something people use sometimes.
Markdown in HTML
Does *not* work **very** well. Use HTML tags.

Line Breaks#

Here's a line for us to start with.
This line is separated from the one above by two newlines, so it will be a _separate paragraph_.  This line is a separate line in the _same paragraph_, created either by two blank spaces or explicit <br /> tag at the end of the previous line.

Here's a line for us to start with.

This line is separated from the one above by two newlines, so it will be a separate paragraph.
This line is a separate line in the same paragraph, created either by two blank spaces or explicit <br /> tag at the end of the previous line.


These different admonitions are available to you. As a general rule: don't overdo it and avoid using admonitions in a row.

This is a warning

This is a warning

Please try to avoid other style elements, and always keep in mind that people with visual handicaps should also be able to cope with your content.

Editor extensions and configurations#

Last but not least, let's talk about editors, extensions and configurations.

You can use any text editor you like to write Markdown. Visual Studio Code, Sublime, Atom, etc. have plugins that help you adhere to style guides by displaying warnings if you break the rules.

Below are some extensions for these editors that help you write clean guides for the developer portal.


Adds syntax highligting for Markdown files and display configurable warnings for invalid formatting.

  • Install the extension via Command Palette (Ctrl+P) using ext install DavidAnson.vscode-markdownlint

  • Add a .markdownlint.json file to your project with the following configuration.

{    "line-length": false,    "MD004" : false,    "MD033":{        "allowed_elements": ["TabItem", "br", "iframe", "dl", "dt","dd", "em"]    },    "MD034" : false,    "MD046" : false}


Helps you work with tables

  • Install the extension via Command Palette (Ctrl+P) using ext install pharndt.vscode-markdown-table
Ctrl+Q Ctrl+Fformat table under cursor.
Ctrl+Q Spaceclear cell under cursor.
Ctrl+Q Ctrl+Qtoggle table mode
  • In table mode
Tabnavigate to the next cell in table
Shift+Tabnavigate to the previous cell in table
Alt+Numpad +Create new column left to the current position
Alt+Numpad -delete current column


When you write guides for cardano-wallet or other components with an API, you might want to include the response for a certain request in your guide. It can be useful not to leave the environment of your editor as to not lose focus or get distracted. rest-book allows you to execute HTTP requests within your editor.

  • Install the extension via Command Palette (Ctrl+P) using ext install
  • Open or create a .restbook file to use the extension.

Editorial Style Guide#

To make everything consistent we should agree on spellings and terms here.

adaWhen talking about the cryptocurrency, do not capitalize, unless at the beginning of a sentence. The idea behind this is to treat it like dollars or euros. If you are in doubt, in English, prefer ada over ADA. Capitalised ADA stands for the ticker symbol only.
tAdaTest ada is tAda, not tADA or TADA. See ada.
the Cardano FoundationAlways use the Cardano Foundation.
DAppsNote the capitalization: Decentralized Application.
dcSparkNote the capitalized S.
EMURGOAll caps in line with EMURGO’s branding.
the FoundationInterchangeable with the Cardano Foundation, the is not capitalized, but Foundation should be.
GitHubNote the capitalized H.
IOHKUse IOHK not IOG. (at least for now)
sidechainsOne word.
stake poolTwo words.
stakingTry to avoid term staking without context as it is ambiguous. staking refers to the whole process of both delegating and setting up a pool but many people confuse this with the actual process of creating blocks. delegating means that people delegate their stake to a stake pool.
proof of stakeLower case. Hyphenate when followed by a noun: proof-of-stake systems.
proof of workLower case. Hyphenate when followed by a noun: proof-of-work systems.
white paperTwo words.