-moz-user-focus - CSS: Cascading Style Sheets 编辑

Non-standard

This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The -moz-user-focus CSS property is used to indicate whether an element can have the focus.

/* Keyword values */
-moz-user-focus: normal;
-moz-user-focus: ignore;

/* Global values */
-moz-user-focus: inherit;
-moz-user-focus: initial;
-moz-user-focus: unset;

By setting its value to ignore, you can disable focusing the element, which means that the user will not be able to activate the element. The element will be skipped in the tab sequence.

Initial value	none
Applies to	all elements
Inherited	no
Computed value	as specified
Animation type	discrete

Note: This property doesn't work for XUL <xul:textbox> elements, because the textbox itself never takes focus. Instead, XBL creates an anonymous HTML <input> element inside the textbox, and that element is what receives focus. You can stop the textbox from taking keyboard focus by setting its tab index to -1, and from taking mouse focus by preventing the default action of mousedown events.

Syntax

Values

ignore

The element does not accept the keyboard focus and will be skipped in the tab order.

normal

The element can accept the keyboard focus.

select-after

?

select-before

?

select-menu

?

select-same

?

select-all

?

none

?

Formal definition

Initial value	none
Applies to	all elements
Inherited	no
Computed value	as specified
Animation type	discrete

Formal syntax

ignore | normal | select-after | select-before | select-menu | select-same | select-all | none

Examples

HTML

<input class="ignored" value="The user cannot focus on this element.">

CSS

.ignored {
  -moz-user-focus: ignore;
}

Specifications

Not part of any standard. A similar property, user-focus, was proposed in early drafts of a predecessor of the CSS3 UI specification, but was rejected by the working group.

Browser compatibility

BCD tables only load in the browser

See also

• -moz-user-input
• -moz-user-modify
• -moz-user-select