Home > Article > Web Front-end > What is the use of hover in css?

What is the use of hover in css?

青灯夜游Original: 2020-12-04 17:19:2011122browse

In CSS, the ":hover" selector is used to select the element on which the mouse pointer is floating, and then set the style for it. The syntax format is "element:hover{css style};"; ":hover" is required Place after ":link" and ":visited" (if present) so that the style can take effect.

Related recommendations: " Programming Tutorial"

: The hover selector is used to select the element on which the mouse pointer is floating. .

Tip: The :hover selector can be used on all elements, not just links.

In the CSS definition, :hover must be placed after :link and :visited (if present) for the style to take effect.

: The link selector sets the style of links pointing to pages that have not been visited, the :visited selector is used to set links to pages that have been visited, and the :active selector is used for active links.

css :hover selector usage

Usage 1:

This What it means is: when the mouse is hovering over the style a, the background color of a is set to yellow

a:hover
    { 
        background-color:yellow;
    }

This is the most common usage, it just changes the style through a

Usage 2:

Use a to control the style of other blocks:

Use a to control the sub-element b of a:

    .a:hover .b {
            background-color:blue;
        }

Use a to control the brothers of a Element c (sibling element):

.a:hover + .c {
        color:red;
    }

Use a to control the nearby element d of a:

.a:hover ~ .d {
        color:pink;
    }

To summarize:

1. What’s in the middle Do not add Control child elements;

2. ' ' Controls sibling elements (sibling elements);

3. '～' Controls nearby elements;

Example

Use a button to control the motion state of a box. When the mouse moves over the button, the box stops moving. When the mouse moves away, the box continues to move.

body code:

<body>
    <div class="btn stop">stop</div>
    <div class="animation"></div>
</body>

css style:

<style>
    .animation {
        width: 100px;
        height: 100px;
        background-color: pink;
        margin: 100px auto;
        animation: move 2s infinite alternate;
        -webkit-animation: move 2s infinite alternate;
    }
    @keyframes move {
        0% {
            transform: translate(-100px, 0);
        }
        100% {
            transform: translate(100px, 0);
        }
    }
    .btn {
        padding: 20px 50px;
        background-color: pink;
        color: white;
        display: inline-block;
    }
    .stop:hover ~ .animation {
        -webkit-animation-play-state: paused;
        animation-play-state: paused;
    }
</style>

For more related articles, please visit PHP Chinese website! !

The above is the detailed content of What is the use of hover in css?. For more information, please follow other related articles on the PHP Chinese website!

php css 指针选择器

Statement：

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Previous article：How to position css child elements relative to parent elements?Next article：How to position css child elements relative to parent elements?

See more

What is the use of hover in css?

Related articles