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This article mainly introduces the CSS how to set active control related knowledge, the content is detailed and easy to understand, the operation is simple and fast, has a certain reference value, I believe that everyone after reading this CSS how to set active control article will have a harvest, let's take a look.

Let's first look at the grammatical format:

: focus {

(style description)

}

Describe it by specifying elements, classes, and ID, as follows:

When setting a specific label

(signature): focus {

(style description)

}

When setting up a specific class

. (class name): focus {

(style description)

}

When setting up a specific ID

# (id name): focus {

(style description)

}

Code example:

Write the following code.

FocusSelector.css

Input {

Background-color:#D0D0D0

}

Input:focus {

Background-color:#FFD0D0

}

Description:

Because "input" is described, the style of the INPUT tag is defined and the background color is specified as gray (# D0D0D0). The definition of a normal INPUT is

Input {background-color:#D0D0D0;}

Receives and activates the style definition for focus, and the background color is specified as pink (# FFD0D0).

Input:focus {background-color:#FFD0D0;}

FocusSelector.html

Enter 1:

Enter 2:

Enter 3:

Enter 4:

Enter 5:

This is the end of the article on "how to set active controls in CSS". Thank you for reading! I believe that everyone has a certain understanding of the knowledge of "how to set active controls in CSS". If you want to learn more, you are welcome to follow the industry information channel.

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