How to set the inner border line in css-CSS Tutorial-php.cn

Home

Web Front-end

CSS Tutorial

How to set the inner border line in css

藏色散人

Mar 03, 2021 am 10:51 AM

css

How to set the inner border line of css: first create an HTML sample file; then define the div; finally use the border attribute and the box-sizing attribute to add the inner border.

How to set the inner border line in css

The operating environment of this article: windows7 system, HTML5&&CSS3 version, DELL G3 computer.

In CSS, you can use the border attribute together with the box-sizing attribute to add an inner border. The border attribute is used to add a border, and the box-sizing attribute is used to define certain elements in a certain way to fit the specified area; set the box-sizing attribute value to the border-box value to add an inner border.

Let’s first look at an example of setting the inner border with css.

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
div.container {
width: 30em;
border: 1em solid;
}
div.box1 {
width: 50%;
border: 1em solid red;
float: left;
}
div.box2 {
box-sizing: border-box;
-moz-box-sizing: border-box;
/* Firefox */
width: 50%;
border: 1em solid red;
float: left;
}
</style>
</head>
<body>
<div class="container">
<div class="box1">普通边框！！</div>
<div class="box2">内边框！！</div>
</div>
</body>
</html>

Copy after login

box-sizing property

The box-sizing property allows you to define specific elements that match a certain area in a specific way.

For example, if you need to place two bordered boxes side by side, you can do this by setting box-sizing to "border-box". This causes the browser to render a box with the specified width and height, and put the borders and padding into the box.

Syntax

1	`box-sizing: content-box\|border-box\|inherit;`

Copy after login

Property values:

content-box: This is the behavior of width and height specified by CSS2.1. Specifying the element's width and height (min/max properties) applies to the box's width and height. Padding and border layout and drawing of elements except specified width and height

border-box: Specifying width and height (min/max properties) determines the element border. That is, specifying the width and height of an element includes padding and border. The width and height of the content are obtained by subtracting the border and padding from the set width and height respectively.

inherit: Specifies the value of the box-sizing attribute, which should be inherited from the parent element.

[Recommended learning: css video tutorial]

Example:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<style> 
div.container
{
width:30em;
border:1em solid;
}
div.box
{
box-sizing:border-box;
-moz-box-sizing:border-box; /* Firefox */
width:50%;
border:1em solid red;
float:left;
}
</style>
</head>
<body>
<div class="container">
<div class="box">这个 div 占据了左边的一半。</div>
<div class="box">这个 div 占据了右边的一半。</div>
</div>
</body>
</html>

Copy after login

Rendering:

How to set the inner border line in css

The above is the detailed content of How to set the inner border line in css. 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

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

Video Face Swap

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

Hot Article

Assassin's Creed Shadows: Seashell Riddle Solution

3 weeks ago By DDD

What's New in Windows 11 KB5054979 & How to Fix Update Issues

2 weeks ago By DDD

Where to find the Crane Control Keycard in Atomfall

3 weeks ago By DDD

Assassin's Creed Shadows - How To Find The Blacksmith And Unlock Weapon And Armour Customisation

1 months ago By DDD

Roblox: Dead Rails - How To Complete Every Challenge

3 weeks ago By DDD

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

Where is the login entrance for gmail email?

7615

CakePHP Tutorial

1387

What is the format of the account name of steam

win11 activation key permanent

nyt connections hints and answers

136

Related knowledge

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 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.

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.

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 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-

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 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 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.

See all articles