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Update sl-wcag-2-0.md #38

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32 changes: 16 additions & 16 deletions docs/tutorials/sl-wcag-2-0.md
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## Design principles
WCAG 2.0 is based around four design principles that state that, in order for a website to be accessible, it must have content that is:

* **Principle 1: Perceivable**. Information and user interface components must be presentable to users in ways they can perceive.
* **Principle 2: Operable**. User interface components and navigation must be operable.
* **Principle 3: Understandable**. Information and the operation of user interface must be understandable.
* **Principle 4: Robust**. Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.
* [**Principle 1: Perceivable**](https://www.w3.org/WAI/WCAG20/quickref/#principle1). Information and user interface components must be presentable to users in ways they can perceive.
* [**Principle 2: Operable**](https://www.w3.org/WAI/WCAG20/quickref/#principle2). User interface components and navigation must be operable.
* [**Principle 3: Understandable**](https://www.w3.org/WAI/WCAG20/quickref/#principle3). Information and the operation of user interface must be understandable.
* [**Principle 4: Robust**](https://www.w3.org/WAI/WCAG20/quickref/#principle4). Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.


## Guidelines
Expand All @@ -18,36 +18,36 @@ Each design principle has a number of guidelines associated with it. There are 1

### Perceivable:

**1.1 Text alternatives**: Provide text alternatives for non-text content.
[**1.1 Text alternatives**](https://www.w3.org/WAI/WCAG20/quickref/#text-equiv): Provide text alternatives for non-text content.

**1.2 Time-based Media**: Provide captions and other alternatives for multimedia.
[**1.2 Time-based Media**](https://www.w3.org/WAI/WCAG20/quickref/#media-equiv): Provide captions and other alternatives for multimedia.

**1.3 Adaptable**:Create content that can be presented in different ways, including by assistive technologies, without losing meaning.
[**1.3 Adaptable**](https://www.w3.org/WAI/WCAG20/quickref/#content-structure-separation):Create content that can be presented in different ways, including by assistive technologies, without losing meaning.

**1.4 Distinguishable**: Make it easier for users to see and hear content.
[**1.4 Distinguishable**](https://www.w3.org/WAI/WCAG20/quickref/#visual-audio-contrast): Make it easier for users to see and hear content.


### Operable:

**2.1 Keyboard Accessible**: Make all functionality available from a keyboard.
[**2.1 Keyboard Accessible**](https://www.w3.org/WAI/WCAG20/quickref/#keyboard-operation): Make all functionality available from a keyboard.

**2.2 Enough Time**: Give users enough time to read and use content.
[**2.2 Enough Time**](https://www.w3.org/WAI/WCAG20/quickref/#time-limits): Give users enough time to read and use content.

**2.3 Seizures**: Do not use content that causes seizures.
[**2.3 Seizures**](https://www.w3.org/WAI/WCAG20/quickref/#seizure): Do not use content that causes seizures.

**2.4 Navigable**: Help users navigate and find content.
[**2.4 Navigable**](https://www.w3.org/WAI/WCAG20/quickref/#navigation-mechanisms): Help users navigate and find content.

### Understandable:

**3.1 Readable**: Make text readable and understandable.
[**3.1 Readable**](https://www.w3.org/WAI/WCAG20/quickref/#meaning): Make text readable and understandable.

**3.2 Predictable**: Make content appear and operate in predictable ways.
[**3.2 Predictable**](https://www.w3.org/WAI/WCAG20/quickref/#consistent-behavior): Make content appear and operate in predictable ways.

**3.3 Input assistance**: Help users avoid and correct mistakes.
[**3.3 Input assistance**](https://www.w3.org/WAI/WCAG20/quickref/#minimize-error): Help users avoid and correct mistakes.

### Robust:

**4.1 Compatible**: Maximize compatibility with current and future user tools.
[**4.1 Compatible**](https://www.w3.org/WAI/WCAG20/quickref/#ensure-compat): Maximize compatibility with current and future user tools.


## Success criteria
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