What are the differences between html and body tags?
Differences: 1. The html tag is the root element of the document; the body tag is the main element of the document; 2. The global styles that should be applied to the html and body tags are different; 3. In JS, html corresponds to "document.documentElement" ", body corresponds to "document.body".
The operating environment of this tutorial: windows7 system, CSS3&&HTML5&&javascript version 1.8.5, Dell G3 computer.
In CSS, the difference between and
is often ignored, and global styles are either defined on or on . In fact, there is a difference between the two, and both CSS veterans and novices should understand it.How HTML and Body are related
<!DOCTYPE html>
<html>
<head>
<!-- Metadata and such -->
</head>
<body>
<!-- Where the content begins -->
<body>
</html>According to the standard definition, is the root element of the document,
, < ;body> are the only two child elements of . According to the specification, is the element that needs to be distinguished from .Therefore, and
are parent-child relationships. In an HTML document, the :root selector corresponds to the element.:root {
}
html {
}It should be noted that the :root selector (pseudo-class) has a higher priority than the html selector: (0, 0, 1, 0) vs (0, 0, 0, 1).
Which global styles should be applied to HTML
html {
font-size: 62.5%;
}
body {
font-size: 1.4rem; /* =14px */
}
h1 {
font-size: 2.4rem; /* =24px */
}Wacky background-color
CSS There are some weird behaviors in there. After applying background-color to
, even if the elements in do not occupy the entire viewport, the background color will spread to the entire viewport.Setting background-color on html can solve this problem.
height: 100%
If the height of
and its sub-elements needs to be set to the height of the window, the element also needs to be added:html,
body {
height: 100%;
}Which global styles should be applied to Body
In the earlier specification,
had the following inline attributes:background
- ##bgcolor
- marginbottom
- marginleft
- marginright
- margintop
- text
| Inline Attribute | CSS Property |
| background | |
| background | background-color |
| margin-bottom | |
| margin-left | |
| margin-right | |
| margin-top | |
| font |
Differences in JavaScriptThe above are some examples of and
in CSS The difference actually exists in JavaScript, for example, html corresponds to document.documentElement, and body corresponds to document.body. For more programming-related knowledge, please visit:
The above is the detailed content of What are the differences between html and body tags?. 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
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
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
1669
14
1428
52
1329
25
1273
29
1256
24
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.
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.
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.
React's Role in HTML: Enhancing User Experience
Apr 09, 2025 am 12:11 AM
React combines JSX and HTML to improve user experience. 1) JSX embeds HTML to make development more intuitive. 2) The virtual DOM mechanism optimizes performance and reduces DOM operations. 3) Component-based management UI to improve maintainability. 4) State management and event processing enhance interactivity.
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: 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.
Solve caching issues in Craft CMS: Using wiejeben/craft-laravel-mix plug-in
Apr 18, 2025 am 09:24 AM
When developing websites using CraftCMS, you often encounter resource file caching problems, especially when you frequently update CSS and JavaScript files, old versions of files may still be cached by the browser, causing users to not see the latest changes in time. This problem not only affects the user experience, but also increases the difficulty of development and debugging. Recently, I encountered similar troubles in my project, and after some exploration, I found the plugin wiejeben/craft-laravel-mix, which perfectly solved my caching problem.
