1. Underline, underline and strikethrough of text
text-decoration:underline overline /*Set to underline and strikethrough, and can also be line-through strikethrough or set one or Two types*/
2. English letter case:
text-transform:capitalize; /*Capitalize the first letter of a word*/
text-transform:uppercase; /*All capitalize*/
text -transform:lowercase; /*All lowercase*/
3. Line spacing and word spacing:
Letter spacing: letter-spacing:xpt
Word spacing: word-spacing:xpt
Line spacing: line -height:xpt
4. Paragraph alignment
Horizontal alignment: The horizontal alignment of paragraphs in CSS is controlled by the attribute text-align
Vertical alignment: The vertical alignment of paragraph text in CSS The method is implemented through the vertical-align attribute.
5. First word enlargement:
When applied:
ChineseThe Autumn Festival is a remnant of ancient celestial worship??The custom of worshiping the moon
6. Picture border style
img {border-color:red} means the four border colors are all red
img {border-color:red blue} means the top, bottom border is red, and the left and right borders It’s blue
img {border-color:red blue yellow} means the upper border is red, the left and right borders are blue, and the lower border is yellow
img {border-color:red blue yellow green} means up, right , the bottom and left borders are red, blue, yellow and green respectively
border-style attribute
h1 {border-style: solid} means the border is solid line, none means there is no border. The border is not displayed. dotted means that the border style is a dotted line composed of short lines. double means that the border line is double lines. The width of the double lines plus the blank part between them is equal to the width set by border-width. groove means 3D groove. Grooved border, inset refers to the 3D inline border, and outset refers to the 3D external border
h1 {border-style:solid} means that the four borders are all solid lines
h1 {border-style:solid dotted} means down, if the left border value is missing, then take the value on the opposite side, the right value
h1 {border-style: solid dotted double} means the left border is missing, then take the right border value
h1 {border- style: solid dotted double ridge} means that the four borders have values, press top, right, bottom, left
7. Set the spacing between pictures and text:
Use float, margin-left, margin- right, margin-top, etc.
We can use float in CSS to make text display in the blank space outside the image when the float is not cleared. As shown below:
Set float to left, the image will be displayed on the left, and right will be displayed on the right. Margin-right is needed to prevent text and images from being pasted together. If you set float :right; The corresponding response should be to change margin-right to margin-left:

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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