Web Front-end
HTML Tutorial
Detailed explanation of examples of how html uses four ways to reference css style sheets
Detailed explanation of examples of how html uses four ways to reference css style sheets
Method one: css1.html
<html> <head> <title>内联样式(方法一)</title> </head> <body> <a href=”http://www.baidu.com” style=”color:#FF00FF; font-size:80;”>百度一下</a> </body> </html>
Method two: css2.html
<html>
<head>
<title>style标签中调用(方法二)</title>
<style type=”text/css”>
a{color:#FF0000;background:#FFFF00;}
</style>
</head>
<body>
<a href=”http://www.baidu.com“>百度二下</a>
</body>
</html>Method three: css3.html
<html> <head> <title>link标签中调用(方法三)</title> <link rel=stylesheet type=”text/css” href=”three.css”/> </head> <body> <a href=”http://www.baidu.com“>百度三下</a> </body> </html>
In the same directory as css3.html three.css file: a{color:#FF00FF; background:#0000FF;}
Method four: css4.html
<html> <head> <title>@import指令(方法四)</title> <style type=”text/css”> @import url(“four.css”); </style> </head> <body> <a href=”http://www.baidu.com“>百度四下</a> </body> </html>
Four.css file in the same directory as css4.html: a{color:#0000FF; background:#FF00FF;}
****************************** *************************************************** *******************
In actual applications, inline styles using the style attribute are not recommended, and the first method is not recommended. , this approach weakens the advantage of CSS to centrally control the appearance of the entire document.
The first three methods use link tags and style tags, and have the following restrictions in IE (including IE6, IE7 and IE8 beta1):
◆ There are only The CSS associated with the first 31 link or style tags can be applied; starting from the 32nd, the CSS associated with the tags will be invalid.
◆ A style tag is only valid for the first 31 @import directives; it is ignored starting from the 32nd @import directive.
◆ Only the first 31 @import directives of a css file are effectively applied; starting from the 31st @import directive is ignored.
◆ A CSS file cannot exceed 288kb.
IE's restrictions on CSS will not be encountered in most cases. Even if you encounter the best solution, you should merge the CSS files and response tags manually or through a back-end program. ,
Minimizing the number of http requests is the first principle for optimizing page rendering
The above is the detailed content of Detailed explanation of examples of how html uses four ways to reference css style sheets. 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
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.
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.
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 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 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 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
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
