Home Web Front-end Front-end Q&A Talk about why CSS cannot select certain elements

Talk about why CSS cannot select certain elements

Apr 24, 2023 am 09:10 AM

CSS cannot be selected

CSS is a language used to create website designs. It allows us to control the style and layout of web pages. In this process, there are many key functions that allow us to freely master web design, including selecting web elements.

However, sometimes we need to control some elements that cannot be selected. So why can’t CSS select certain elements?

First, we need to understand how CSS works. CSS selectors can select target elements by selecting the relevant properties of the element or by giving a given expression. Basic selectors include tag selectors, class selectors, id selectors, etc. These selectors can help us precisely select certain parts of a web page, such as a title or a button.

However, some elements cannot be selected. Such elements are usually inside the web page and have no specific structure or attributes, so they cannot be selected through CSS selectors. These elements include spaces, carriage returns, tabs and other whitespace characters, whitespace characters between words, comments, etc. These elements are called "unselectable elements".

In CSS, there are some properties that can control these unselectable elements. Includes:

  • pointer-events: Can control click events of unselectable elements. Set this attribute to none and the element will not respond to click events.
  • user-select: This attribute controls whether the user can select text. If you set this property to none, the user will not be able to select text in the web page, but the browser's built-in copy and paste function will still work.
  • Visibility: This attribute can control whether the element is visible. Set this attribute to hidden, then the element will be hidden and cannot respond to any events.

In some special occasions, we may need to use CSS to control these unselectable elements. For example, we need to add a video player control bar to the web page, but we don't want the user to select it. At this time, we can use the above attributes to achieve this purpose.

In summary, CSS cannot select some elements because these elements do not have specific attributes or structures, and they cannot be accurately selected through CSS selectors. However, we can control the behavior and visibility of these elements by leveraging some specific properties.

The above is the detailed content of Talk about why CSS cannot select certain elements. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
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

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

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

What is useEffect? How do you use it to perform side effects? What is useEffect? How do you use it to perform side effects? Mar 19, 2025 pm 03:58 PM

The article discusses useEffect in React, a hook for managing side effects like data fetching and DOM manipulation in functional components. It explains usage, common side effects, and cleanup to prevent issues like memory leaks.

Explain the concept of lazy loading. Explain the concept of lazy loading. Mar 13, 2025 pm 07:47 PM

Lazy loading delays loading of content until needed, improving web performance and user experience by reducing initial load times and server load.

What are higher-order functions in JavaScript, and how can they be used to write more concise and reusable code? What are higher-order functions in JavaScript, and how can they be used to write more concise and reusable code? Mar 18, 2025 pm 01:44 PM

Higher-order functions in JavaScript enhance code conciseness, reusability, modularity, and performance through abstraction, common patterns, and optimization techniques.

How does currying work in JavaScript, and what are its benefits? How does currying work in JavaScript, and what are its benefits? Mar 18, 2025 pm 01:45 PM

The article discusses currying in JavaScript, a technique transforming multi-argument functions into single-argument function sequences. It explores currying's implementation, benefits like partial application, and practical uses, enhancing code read

How does the React reconciliation algorithm work? How does the React reconciliation algorithm work? Mar 18, 2025 pm 01:58 PM

The article explains React's reconciliation algorithm, which efficiently updates the DOM by comparing Virtual DOM trees. It discusses performance benefits, optimization techniques, and impacts on user experience.Character count: 159

What is useContext? How do you use it to share state between components? What is useContext? How do you use it to share state between components? Mar 19, 2025 pm 03:59 PM

The article explains useContext in React, which simplifies state management by avoiding prop drilling. It discusses benefits like centralized state and performance improvements through reduced re-renders.

How do you prevent default behavior in event handlers? How do you prevent default behavior in event handlers? Mar 19, 2025 pm 04:10 PM

Article discusses preventing default behavior in event handlers using preventDefault() method, its benefits like enhanced user experience, and potential issues like accessibility concerns.

What are the advantages and disadvantages of controlled and uncontrolled components? What are the advantages and disadvantages of controlled and uncontrolled components? Mar 19, 2025 pm 04:16 PM

The article discusses the advantages and disadvantages of controlled and uncontrolled components in React, focusing on aspects like predictability, performance, and use cases. It advises on factors to consider when choosing between them.

See all articles