css cursor url usage format: css:{cursor:url('icon path'),auto;} //IE, FF, chrome browsers are all ok
Example code: html{cursor: url("http://ued.taobao.com/blog/wp-content/themes/taobaoued/images/cursor.ico"),auto;}
Analysis: The previous url is the custom mouse icon path, and the second parameter auto is the css standard cursor style, which can be replaced by other attributes (such as pointer/default, etc.)!
(Note: w3school recommends that the second parameter must define a common cursor, in case the available cursor defined by the URL becomes a backup! In addition, the second parameter can be omitted in IE)
When customizing mouse display icons, please pay attention to the following issues
Icon format:
IE supports cur, ani, and ico formats. FF supports bmp, gif, jpg, cur, and ico formats. It does not support ani format or gif animation format, so generally the URL is quoted. It is better to save the picture in ico or cur format!
Icon size:
The recommended size of the mouse image is 32*32, otherwise it may cause inconsistent icon sizes!
In addition, for the problem that the mouse image is not displayed in the browser, the problem mostly lies in the reference to the URL path of the mouse image. You can try the absolute and relative path references respectively.
Finally, the possible values of the cursor attribute are attached: (All major browsers support the following cursor attributes)
Value | Description |
---|---|
url |
The URL of the custom cursor to be used. Note: Always define a normal cursor at the end of this list, in case there is no available cursor defined by URL. |
default | Default cursor (usually an arrow) |
auto | Default. The cursor set by the browser. |
crosshair | The cursor appears as a crosshair. |
pointer | The cursor is rendered as a pointer (a hand) indicating the link |
move | This cursor indicates that an object can be moved. |
e-resize | This cursor indicates that the edge of the rectangular box can be moved to the right (east). |
ne-resize | This cursor indicates that the edge of the rectangular box can be moved up and to the right (North/East). |
nw-resize | This cursor indicates that the edge of the rectangular box can be moved up and to the left (North/West). |
n-resize | This cursor indicates that the edge of the rectangular box can be moved up (north). |
se-resize | This cursor indicates that the edge of the rectangular box can be moved down and to the right (south/east). |
sw-resize | This cursor indicates that the edge of the rectangular box can be moved down and to the left (south/west). |
s-resize | This cursor indicates that the edge of the rectangular box can be moved downward (North/West). |
w-resize | This cursor indicates that the edge of the rectangular box can be moved to the left (west). |
text | This cursor indicates text. |
wait | This cursor indicates that the program is busy (usually a watch or hourglass). |
help | This cursor indicates available help (usually a question mark or a balloon). |

To build a website with powerful functions and good user experience, HTML alone is not enough. The following technology is also required: JavaScript gives web page dynamic and interactiveness, and real-time changes are achieved by operating DOM. CSS is responsible for the style and layout of the web page to improve aesthetics and user experience. Modern frameworks and libraries such as React, Vue.js and Angular improve development efficiency and code organization structure.

Boolean attributes are special attributes in HTML that are activated without a value. 1. The Boolean attribute controls the behavior of the element by whether it exists or not, such as disabled disable the input box. 2.Their working principle is to change element behavior according to the existence of attributes when the browser parses. 3. The basic usage is to directly add attributes, and the advanced usage can be dynamically controlled through JavaScript. 4. Common mistakes are mistakenly thinking that values need to be set, and the correct writing method should be concise. 5. The best practice is to keep the code concise and use Boolean properties reasonably to optimize web page performance and user experience.

HTML code can be cleaner with online validators, integrated tools and automated processes. 1) Use W3CMarkupValidationService to verify HTML code online. 2) Install and configure HTMLHint extension in VisualStudioCode for real-time verification. 3) Use HTMLTidy to automatically verify and clean HTML files in the construction process.

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.

The function of HTML is to define the structure and content of a web page, and its purpose is to provide a standardized way to display information. 1) HTML organizes various parts of the web page through tags and attributes, such as titles and paragraphs. 2) It supports the separation of content and performance and improves maintenance efficiency. 3) HTML is extensible, allowing custom tags to enhance SEO.

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 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 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.


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