Home Web Front-end CSS Tutorial How to make a flexible box in css3

How to make a flexible box in css3

Nov 24, 2017 am 11:52 AM
css css3

Sometimes we need to write a flexible box in CSS3, so how to make this code? This requires the use of our box-shadow attribute, which allows the box to produce a shadow effect when displayed. Here is a detailed explanation of how to write

:

       box-shadow:length length length color;

The first parameter represents the horizontal distance of the shadow from the box

The second parameter represents the vertical distance of the shadow from the box

The third parameter represents the blur radius of the shadow

The fourth parameter represents the color of the shadow

Use shadows for elements in the box

You can individually apply shadows to the elements in the box Elements use shadows.

You can use the first-letter selector or the first-line selector to only have the first text or the first line have a

shadow effect

for the table Use shadows in cells

You can use the box-shadow property to create a shadow effect on tables and cells within the table.

Specify the calculation method for the width and height of the element

In css3, use the box-sizing attribute to specify the calculation method for the width and height of the element

box- Sizing attribute

In CSS, use the width attribute and height attribute to specify the width and height of the element.

But using the box-sizing attribute, you can specify whether the width and height values ​​specified with the width attribute and height attribute respectively include the padding area inside the element, as well as the width and height of the border.

The attribute values ​​that can be specified for the box-sizing attribute are the content-box attribute value and the border-box attribute value. The former means that the width and height of the element do not include the internal padding area, and the width and height of the border

, while the latter means that the width and height of the element include the internal padding area, and the width and height of the border.

Previously, the default was to use the content-box attribute value.

In addition, you can specify the attribute value

in the box-sizing attribute as

padding

-box, that is, the specified width and height content include The width and height of the content and the width and height of the inner padding area, excluding the width and height of the border

The purpose of use is to control the total width of the element , if this attribute is not used, the

used by default in the style is the content-box attribute value, which only specifies the width of the content, but does not specify the

total width of the element. Make the designation.

In some cases, using the border-box attribute value will make

page layout

more convenient.

For example, as long as the border-box attribute value of the two div elements is set to 50%, you can ensure that the two div

elements are displayed side by side. This is how to make a flexible box. For more exciting information, please pay attention to other related articles on the php Chinese website!

Related reading:

How to insert pictures in html

What should you pay attention to when centering a div in html

How to use if comments in html

The above is the detailed content of How to make a flexible box in css3. 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

Video Face Swap

Video Face Swap

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

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)

How to use bootstrap in vue How to use bootstrap in vue Apr 07, 2025 pm 11:33 PM

Using Bootstrap in Vue.js is divided into five steps: Install Bootstrap. Import Bootstrap in main.js. Use the Bootstrap component directly in the template. Optional: Custom style. Optional: Use plug-ins.

The Roles of HTML, CSS, and JavaScript: Core Responsibilities The Roles of HTML, CSS, and JavaScript: Core Responsibilities Apr 08, 2025 pm 07:05 PM

HTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.

Understanding HTML, CSS, and JavaScript: A Beginner's Guide Understanding HTML, CSS, and JavaScript: A Beginner's Guide Apr 12, 2025 am 12:02 AM

WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.

How to write split lines on bootstrap How to write split lines on bootstrap Apr 07, 2025 pm 03:12 PM

There are two ways to create a Bootstrap split line: using the tag, which creates a horizontal split line. Use the CSS border property to create custom style split lines.

How to set up the framework for bootstrap How to set up the framework for bootstrap Apr 07, 2025 pm 03:27 PM

To set up the Bootstrap framework, you need to follow these steps: 1. Reference the Bootstrap file via CDN; 2. Download and host the file on your own server; 3. Include the Bootstrap file in HTML; 4. Compile Sass/Less as needed; 5. Import a custom file (optional). Once setup is complete, you can use Bootstrap's grid systems, components, and styles to create responsive websites and applications.

How to insert pictures on bootstrap How to insert pictures on bootstrap Apr 07, 2025 pm 03:30 PM

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.

How to use bootstrap button How to use bootstrap button Apr 07, 2025 pm 03:09 PM

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

How to resize bootstrap How to resize bootstrap Apr 07, 2025 pm 03:18 PM

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-

See all articles