How to use css nav-index attribute

css The nav-index attribute is used to specify the continuous navigation order ("tabbing order") of elements. The syntax of the nav-index attribute is nav-index: auto|number|inherit.

How to use the css nav-index attribute?

Definition and Usage

The nav-index attribute specifies the sequential navigation order ("tabbing order") of elements.

Default: auto

Inheritance: no

Version: CSS3

JavaScript Syntax:

object.style.navIndex=2

CSS3 Syntax

nav-index: auto|number|inherit;

Attribute value

auto The navigation keys assigned by the browser control the order of elements.

number indicates the navigation key control order of the element. 1 represents the first one.

inherit specifies that the value of the nav-index attribute should be inherited from the parent element.

Example

Specifies where to navigate when using the arrow keys:

button#b1
{
top:20%;left:25%;
nav-index:1;
nav-right:#b2;nav-left:#b4;
nav-down:#b2;nav-up:#b4;
}
button#b2
{
top:40%;left:50%;
nav-index:2;
nav-right:#b3;nav-left:#b1;
nav-down:#b3;nav-up:#b1;
}
button#b3
{
top:70%;left:25%;
nav-index:3;
nav-right:#b4;nav-left:#b2;
nav-down:#b4;nav-up:#b2;
}
button#b4
{
top:40%;left:0%;
nav-index:4;
nav-right:#b1;nav-left:#b3;
nav-down:#b1;nav-up:#b3;
}

Effect output:

Browser support: Currently only Opera supports the nav-index attribute.

The above is the detailed content of How to use css nav-index attribute. For more information, please follow other related articles on the PHP Chinese website!