2.2.45 [HTML] Section 17.11.2, Access keys

C0041:

The specification states:

 accesskey = character [CN] 
  
 This attribute assigns an access key to an element. An access key is a single 
 character from the document character set.

All Document Modes (All Versions)

If the user incorrectly attempts to assign a string to the accesskey attribute, the first character of the string is used as the access key.

C0097:

The specification states:

Pressing an access key assigned to an element gives focus to the element.

All Document Modes (All Versions)

Pressing an access key that is assigned to an element gives focus to that element. If an access key is assigned to more than one element, pressing the access key gives focus to the first element. Pressing the access key again gives focus to the next element that has the same access key. If no other element has that access key, focus is given to a lowercase version of the access key, if there is one.

C0042:

The specification states:

 The action that occurs when an element receives focus depends on the element. For 
 example, when a user activates a link defined by the A element, the user agent 
 generally follows the link.

All Document Modes (All Versions)

When the user presses the access key for a hyperlink, focus is shifted to that hyperlink. The link is navigated only when the user activates the focused link by pressing the ENTER key.

C0043:

The specification states:

 When a user activates a radio button, the user agent changes the value of the radio 
 button.

All Document Modes (All Versions)

When an access key for a radio button is pressed, the focus is set on that radio button and the radio button is activated at the same time.

C0044:

The specification states:

 The invocation of access keys depends on the underlying system. For instance, on 
 machines running MS Windows, one generally has to press the "alt" key in addition 
 to the access key.

All Document Modes (All Versions)

The invocation of any access key is caused by pressing the ALT key simultaneously with the access key.

C0045:

The specification states:

 The rendering of access keys depends on the user agent. We recommend that authors 
 include the access key in label text or wherever the access key is to apply. User 
 agents should render the value of an access key in such a way as to emphasize its 
 role and to distinguish it from other characters (e.g., by underlining it).

All Document Modes (All Versions)

The value of the access key is not automatically underlined or emphasized. The author must specify the markup to be used for emphasis.

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