div css introductory knowledge_html/css_WEB-ITnose-HTML Tutorial-php.cn

Home

Web Front-end

HTML Tutorial

div css introductory knowledge_html/css_WEB-ITnose

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 24, 2016 pm 12:32 PM

Traditional page tables are used to layout and display data
Disadvantages:
1. The display style and data are bound together
2. The flexibility is not high during layout.
3. A page may have a large number of

elements, and the code will be redundant
4. Increased bandwidth (200 bytes*2000000*30=?).
5. Search engines don’t like this layout.
Advantages:
1. It is relatively simple to understand
2. Different browsers generally see the same effect.
3. It is very good for displaying data.
div css
Basic idea: data and style should be separated
div (section) data
css file to specify how the data should be displayed.
To summarize, div css is a currently popular web page layout technology
div is used to store the data that needs to be displayed (text, charts...); css is used to specify how to display, so as to achieve data and display mutual separation effect.
div is a container used to store content (text, pictures, elements).
CSS is used to specify how the content placed in the div is displayed, including the location and appearance of the content.
Example:
my.css
.style{
/*Width*/
width: 400px;
height:300px;/*Be sure to write a semicolon*/
background-color:silver;
border:1px solid red;
margin-left:400px;
margin-top:250px;
padding-top:20px;
padding-left :40px;
}

demo.html

css entry-level small case
< ;!--Introduce our css-->

Advantages of div css
To deeply understand the superiority of div css, we have to mention the three historical periods of web design: table, table css, div css
①table web design : Content and style (appearance and layout) mixed
②table css web design: table layout, css specified appearance
③div css web design: div holds content, css specifies style (appearance and layout), content and style are completely separated .
/*.s1 uses term class selector*/
.s1
{
color:green;
font-size:30px;
}
.s2
{
color:yellow;
font-size:12px;
}
.s3
{
color:blue;
font-style:italic;
}
.s4
{
color:green;
font-weight:bold;
}
.s5
{
color:#9c3131;
text-decoration:underline;
}

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

How to fix KB5055612 fails to install in Windows 10?

4 weeks ago By DDD

Roblox: Grow A Garden - Complete Mutation Guide

3 weeks ago By DDD

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys

3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Nordhold: Fusion System, Explained

4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook

3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

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

Java Tutorial

1670

CakePHP Tutorial

1428

Laravel Tutorial

1329

PHP Tutorial

1274

C# Tutorial

1256

Related knowledge

HTML: The Structure, CSS: The Style, JavaScript: The Behavior Apr 18, 2025 am 12:09 AM

The roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.

The Future of HTML, CSS, and JavaScript: Web Development Trends Apr 19, 2025 am 12:02 AM

The future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.

The Future of HTML: Evolution and Trends in Web Design Apr 17, 2025 am 12:12 AM

The future of HTML is full of infinite possibilities. 1) New features and standards will include more semantic tags and the popularity of WebComponents. 2) The web design trend will continue to develop towards responsive and accessible design. 3) Performance optimization will improve the user experience through responsive image loading and lazy loading technologies.

HTML: Building the Structure of Web Pages Apr 14, 2025 am 12:14 AM

HTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.

HTML vs. CSS vs. JavaScript: A Comparative Overview Apr 16, 2025 am 12:04 AM

The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.

HTML vs. CSS and JavaScript: Comparing Web Technologies Apr 23, 2025 am 12:05 AM

HTML, CSS and JavaScript are the core technologies for building modern web pages: 1. HTML defines the web page structure, 2. CSS is responsible for the appearance of the web page, 3. JavaScript provides web page dynamics and interactivity, and they work together to create a website with a good user experience.

HTML: Is It a Programming Language or Something Else? Apr 15, 2025 am 12:13 AM

HTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.

What is the difference between <strong>, <b> tags and <em>, <i> tags? Apr 28, 2025 pm 05:42 PM

The article discusses the differences between HTML tags , , , and , focusing on their semantic vs. presentational uses and their impact on SEO and accessibility.

See all articles