


Introduction to the use of several special attribute tags in HTML_HTML/Xhtml_Web page production
The following attributes are not very compatible with browsers.
1.transform:rotate(45deg)
2.border-top-left-radius This attribute allows you to add a rounded border to an element
3.border-radius This property allows you to add a rounded border to an element
4.box-shadow property adds one or more shadows to the box
5.text-shadow property sets a shadow to the text
6.transition
In order to be better compatible with various browsers, a prefix needs to be added.
-o- /*Opera browser*/
-webkit- /*Webkit kernel browser Safari and chrome*/
-ms- /*IE 9*/
-moz- /*Firefox*/
1.transform:rotate(45deg)
Rotate the object through the transform attribute, where (45deg) is the angle of rotation
transform:rotate(45deg);
-ms-transform:rotate(45deg); /*IE 9*/
-o-transform:rotate(45deg); /*Opera browser*/
-webkit-transform:rotate(45deg); /*Webkit kernel browser Safari and chrome*/
-moz-transform: rotate(45deg); /*Firefox browser*/
2.border-top-left-radius border-radius This property allows you to add a rounded border to an element
former You can choose where to add a rounded border
border-top-left-radius, border-top-right-radius, border-bottom-left-radius, border-bottom-right-radius
border-top-left -radius This attribute allows you to add a rounded border to an element. It is the same as border-radius, but you can control where the rounded border needs to be added.
3. The box-shadow attribute adds a or Multiple shadows, text-shadow attribute sets shadow to text
box-shadow: h-shadow || v-shadow || blur || spread || color || inset;
attribute: horizontal shadow position|| vertical shadow position|| blur distance|| shadow size|| shadow color|| Change outer shadow (outset) to inner shadow
box-shadow:1px 1px 3px #292929;
text-shadow: h-shadow || v-shadow || blur || color;
text-shadow: 0px -1px 0px #000;
4.transition
property || duration || timing-function || delay
Specifies the name of the CSS property that sets the transition effect|| Specifies how many seconds or milliseconds it takes to complete the transition effect|| Specifies the speed curve of the speed effect|| Defines the transition effect When to start
Currently all browsers do not support the transition attribute.
ease default. The animation starts at a low speed, then speeds up, and slows down before ending.
ease-in animation starts at a low speed.
ease-out animation ends at a low speed
ease-in-out animation starts and ends at a low speed
transition:background 5s ease;
ONE EG:
Please move the mouse pointer to the blue div element to see to the transition effect.
Note: This example does not work in Internet Explorer.
TWO EG:
Please move the mouse pointer to the blue div element to see the transition effect.
Note: This example does not work in Internet Explorer.

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.

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.

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

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 is a language used to build web pages, defining web page structure and content through tags and attributes. 1) HTML organizes document structure through tags, such as,. 2) The browser parses HTML to build the DOM and renders the web page. 3) New features of HTML5, such as, enhance multimedia functions. 4) Common errors include unclosed labels and unquoted attribute values. 5) Optimization suggestions include using semantic tags and reducing file size.

WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.


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