search
HomeWeb Front-endCSS TutorialDetailed explanation of the use of hover selector in CSS

Sometimes you need to use the two mouse events mouseover and mouseout, but writing js is more troublesome, and you have to add listening events, so things that can be solved with css should be solved with css as much as possible, which can improve performance. Let me talk about it below. Understanding of :hover:

When we were learning computer applications, the teacher taught us to use the :hover selector to complete the drop-down menu. Before, I only knew how to use it, but I didn’t know why it was used in this way. Now write down how to use it

Definition and usage

Definition:

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

:hover selector applies to all elements

Usage 1:

This means: when the mouse is hovering over the style a, the background color of a is set For 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 a's sibling element c (sibling element):


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


Use a controls the nearest element d of a:


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


##To summarize:

1. Add nothing in the middle to control child elements;

2. '+' controls sibling elements (sibling elements);
3. '~' controls nearby elements;

Example

Use a button to control the movement 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>
        <p class="btn stop">stop</p>
        <p class="animation"></p>
    </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>


implementation Effect:

Related recommendations:


How to use the color animation of hover animation in Css3

Examples of using hover pseudo-classes in CSS

Sample code of how CSS implements hover dynamic effects

The above is the detailed content of Detailed explanation of the use of hover selector in CSS. For more information, please follow other related articles on the PHP Chinese website!

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
Anchor Positioning Just Don't Care About Source OrderAnchor Positioning Just Don't Care About Source OrderApr 29, 2025 am 09:37 AM

The fact that anchor positioning eschews HTML source order is so CSS-y because it's another separation of concerns between content and presentation.

What does margin: 40px 100px 120px 80px signify?What does margin: 40px 100px 120px 80px signify?Apr 28, 2025 pm 05:31 PM

Article discusses CSS margin property, specifically "margin: 40px 100px 120px 80px", its application, and effects on webpage layout.

What are the different CSS border properties?What are the different CSS border properties?Apr 28, 2025 pm 05:30 PM

The article discusses CSS border properties, focusing on customization, best practices, and responsiveness. Main argument: border-radius is most effective for responsive designs.

What are CSS backgrounds, list the properties?What are CSS backgrounds, list the properties?Apr 28, 2025 pm 05:29 PM

The article discusses CSS background properties, their uses in enhancing website design, and common mistakes to avoid. Key focus is on responsive design using background-size.

What are CSS HSL Colors?What are CSS HSL Colors?Apr 28, 2025 pm 05:28 PM

Article discusses CSS HSL colors, their use in web design, and advantages over RGB. Main focus is on enhancing design and accessibility through intuitive color manipulation.

How can we add comments in CSS?How can we add comments in CSS?Apr 28, 2025 pm 05:27 PM

The article discusses the use of comments in CSS, detailing single-line and multi-line comment syntaxes. It argues that comments enhance code readability, maintainability, and collaboration, but may impact website performance if not managed properly.

What are CSS Selectors?What are CSS Selectors?Apr 28, 2025 pm 05:26 PM

The article discusses CSS Selectors, their types, and usage for styling HTML elements. It compares ID and class selectors and addresses performance issues with complex selectors.

Which type of CSS holds the highest priority?Which type of CSS holds the highest priority?Apr 28, 2025 pm 05:25 PM

The article discusses CSS priority, focusing on inline styles having the highest specificity. It explains specificity levels, overriding methods, and debugging tools for managing CSS conflicts.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools