There are several types of css application styles
CSS provides five types of applied styles: inline styles, internal styles, external styles, embedded styles and user agent styles. Inline styles apply to individual elements, internal styles apply to all elements in the document, external styles are stored in separate .css files, embedded styles import external style sheets into the HTML document, and user agent styles are the default styles built into the browser.
Types of CSS applied styles
CSS (Cascading Style Sheet) is a style used to describe the appearance of a web page Language, which provides style and layout information for web page elements. There are several different types of CSS application styles to meet different styling needs.
1. Inline styles
Inline styles are applied directly to individual HTML elements using the style
attribute. This type is useful for quickly adding specific styles, but only to a single element.
2. Internal styles
Internal styles are written in the <style>
element of the HTML document. It defines style rules that apply to all elements of the document. Internal styles are clearer and easier to maintain than inline styles.
3. External styles
External styles are stored in a separate .css file and then linked to HTML through the <link>
element document. External styles are an effective way to separate styles and HTML code, making styles reusable and maintainable.
4. Embedded styles
Embedded styles use the @import rule to import external style sheets into HTML documents. It is similar to external styles, but the styles are embedded directly into the HTML document. Embedded styles are less commonly used because they increase the size of the HTML code.
5. User agent style
The user agent style is the default style built in by the browser. When a web page contains no style information, the browser uses these styles to define the default appearance of elements. User agent styles cannot be customized or overridden.
The above is the detailed content of There are several types of css application styles. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



The default style of the Bootstrap list can be removed with CSS override. Use more specific CSS rules and selectors, follow the "proximity principle" and "weight principle", overriding the Bootstrap default style. To avoid style conflicts, more targeted selectors can be used. If the override is unsuccessful, adjust the weight of the custom CSS. At the same time, pay attention to performance optimization, avoid overuse of !important, and write concise and efficient CSS code.

To adjust the size of elements in Bootstrap, you can use the dimension class, which includes: adjusting width: .col-, .w-, .mw-adjust height: .h-, .min-h-, .max-h-

To use Bootstrap to layout a website, you need to use a grid system to divide the page into containers, rows, and columns. First add the container, then add the rows in it, add the columns within the row, and finally add the content in the column. Bootstrap's responsive layout function automatically adjusts the layout according to breakpoints (xs, sm, md, lg, xl). Different layouts under different screen sizes can be achieved by using responsive classes.

How to use the Bootstrap button? Introduce Bootstrap CSS to create button elements and add Bootstrap button class to add button text

The file upload function can be implemented through Bootstrap. The steps are as follows: introduce Bootstrap CSS and JavaScript files; create file input fields; create file upload buttons; handle file uploads (using FormData to collect data and then send to the server); custom style (optional).

There are several ways to insert images in Bootstrap: insert images directly, using the HTML img tag. With the Bootstrap image component, you can provide responsive images and more styles. Set the image size, use the img-fluid class to make the image adaptable. Set the border, using the img-bordered class. Set the rounded corners and use the img-rounded class. Set the shadow, use the shadow class. Resize and position the image, using CSS style. Using the background image, use the background-image CSS property.

To create a Bootstrap framework, follow these steps: Install Bootstrap via CDN or install a local copy. Create an HTML document and link Bootstrap CSS to the <head> section. Add Bootstrap JavaScript file to the <body> section. Use the Bootstrap component and customize the stylesheet to suit your needs.

The size of a Bootstrap list depends on the size of the container that contains the list, not the list itself. Using Bootstrap's grid system or Flexbox can control the size of the container, thereby indirectly resizing the list items.
