What does html5 consist of?

HTML5 consists of document structure, layout (Flexbox, Grid), multimedia, canvas, forms, APIs and other features, including semantic markup, web storage and web sockets, to provide a richer, flexible and interactive web development experience.

The basic components of html5 document structure

Basic components of HTML5 document structure: Doctype: declares the document type and follows the HTML5 standard Head: contains metadata (title, character set, style sheet) Body: contains document content (text, images, videos) semantics Annotations of elements (titles, paragraphs, lists, tables, forms): provide information about the document and do not appear in the web page. Script elements: contain JavaScript code to enhance document functionality.

What are the features of html5

HTML5 features include: Semantic tags: Enhance document structure and accessibility. Multimedia support: Provides native video and audio elements. Canvas and WebGL: for drawing graphics and creating interactive animations. Local storage: Allows web pages to store data on the user's device. Web Socket: enables two-way real-time communication. Geolocation API: Access user location information. Drag and Drop API: Enhance user interface interaction. SVG: Supports scalable vector graphics, providing higher quality and flexible graphics.

How to write html framework code

To create a web page layout, HTML framework code provides the structural skeleton, defining areas such as the header, footer, main content, and sidebars. Writing HTML framework code includes: 1. Creating HTML files and defining page structure; 2. Creating CSS files and defining page styles.

How to center the frame in html

There are four ways to center the HTML frame: margin: 0 auto;: Center the frame horizontally. text-align: center;: Center the frame content horizontally. display: flex; align-items: center;: Center the frame vertically. position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);: Uses CSS transforms to position the frame in the center of the fixed-size frame's container.

How to make html frameset

An HTML frameset is a nested collection of documents that appears in its own area, called a frame. Making a frameset requires the following steps: Create an HTML document and declare the frameset. Define a frame nested within a frameset and give it a name and URL. Set frame properties such as size and resize limits. Nest framesets to create complex layouts and specify row or column sizes.

How to use html escape characters

HTML escape characters are used to represent special characters in HTML code so that they cannot be confused with HTML tags. Commonly used HTML escape characters include <, >, &, ", ', , ©, ®, and €. Use HTML escape characters to preserve the meaning of HTML tags, include special symbols, and prevent cross-site scripting attacks.

How to align the content of input boxes in html

How to align the content of the input box in HTML: use text-align style: left alignment: text-align: left; center: text-align: center; right alignment: text-align: right; use CSS float: left float: float: left; right float: float: right; use HTML table: center alignment: ...; use CSS grid layout: grid self-alignment: display: grid; grid-auto

How to center the text box in html

There are many ways to center the HTML text box: text input box: use the CSS code input[type="text"] { text-align: center; } text area: use the CSS code textarea { text-align: center; } horizontal centering: Use the text-align: center style on the text box parent element to center it vertically: use the vertical-align attribute input[type="text"] { vertical-align: middle; }Flexbox: use display:

How to set the distance between text boxes in html

Set the distance between text boxes in HTML: Use the CSS margin property to set the distance between a text box and surrounding elements. Use the padding and border properties of the CSS box model to adjust the size and border width of text boxes, indirectly increasing the distance between text boxes.

How to adjust the position of html text box

There are the following methods to adjust the position of the text box in HTML: 1. Use the style attribute to set absolute positioning and specify the distance between the text box and the edge of the page; 2. Use the float attribute to float the text box to one side; 3. Use the margin and padding attributes to adjust the text The position of the box within the container; 4. Use the position: fixed attribute to fix the text box at a specific position on the page.

How to use html spaces

Two methods are used for spaces in HTML: (invisible, non-breaking spaces) preformatted text (retaining the original format of the text, including spaces)

How to write two empty spaces in html

There are two ways to create two-space code in HTML: 1. Use character entities; 2. Use CSS to set element spacing. The choice depends on fixed spacing requirements and CSS style impact requirements.

How to set line spacing in html paragraphs

Paragraph line spacing can be set using the following methods: Using the CSS property line-height Using the HTML tag
Using the line-height property in the

tag