Can HTML beautify web pages?

HTML cannot beautify web pages. HTML is used to define the content of web pages, such as titles, text, images, etc. It cannot beautify web pages; beautifying web pages requires the use of CSS. CSS is a style language and is mainly used to control the appearance of web pages, such as colors, fonts, backgrounds, etc. . CSS can precisely control the position and layout of objects in web pages at the pixel level, supports almost all font size styles, has the ability to edit web page objects and model styles, and can perform preliminary interactive design.

The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.

HTML cannot beautify web pages. To beautify web pages, you need to use CSS.

According to W3C standards, a web page is mainly composed of three parts: structure layer (HTNL), presentation layer (CSS) and behavior layer (JavaScript).

Structural layer

The structural layer is the skeleton of the page, created by HTML or XHTML markup language, and used to build the structure of the document.

HTML is used to define the content of a web page, such as title, text, images, etc.;

Presentation layer

The presentation layer is the style of the page, consisting of CSS (Cascading Style Sheets) is responsible for the creation and is used to set the presentation effect of the document.

CSS is used to control the appearance of the web page, such as color, font, background, etc.;

Behavior layer

The behavior layer is the behavior of the page, consisting of The JavaScript language is created to implement document behavior.

JavaScript is used to update the content in the web page in real time, such as obtaining data from the server and updating it to the web page, modifying the style of some tags or the content thereof, etc., which can make the web page more vivid.

To put it simply, JavaScript, HTML and CSS together constitute the web page we see

• HTML is used to define the content of the web page. For example, title, text, images, etc.;

• CSS is used to control the appearance of the web page, such as color, font, background, etc.;

• JavaScript is used To update the content in the web page in real time, such as obtaining data from the server and updating it to the web page, modifying the style of some tags or the content thereof, etc., to make the web page more vivid.

CSS Introduction

CSS is the abbreviation of Cascading Style Sheet, which is translated into Chinese as "cascading style sheet". It is a markup language used to control the style of web pages and allows the separation of style code from web content.

Simply put, the introduction of CSS is to make the HTML language better adapt to the art design of the page.

CSS was reviewed and recommended by the W3C in 1996. The introduction of CSS immediately triggered new climaxes in web design, and excellent pages designed using CSS emerged one after another.

CSS is based on the HTML language and provides rich formatting functions, such as fonts, colors, backgrounds, and overall layout. Web designers can set different styles for various visual browsers, including Monitors, printers, tablets, mobile phones and other mobile devices.

CSS is mainly used to design the style of web pages and beautify web pages; it can not only statically modify web pages, but also dynamically format various elements of web pages in conjunction with various scripting languages.

Compared with the performance of traditional HTML, CSS can perform pixel-level precise control over the position and layout of objects in web pages, supports almost all font size styles, and has the ability to edit web page objects and model styles. , and can carry out preliminary interaction design. It is currently the best performance design language based on text display.

CSS can simplify or optimize the writing method according to the understanding ability of different users. It has strong readability for all types of people.

Advantages of css

(1) Save time: You can write CSS once and then reuse it multiple times in multiple HTML pages through external introduction

(2) Greatly reduce page code, improve page loading speed, and reduce bandwidth costs: By using CSS, you do not need to write HTML tag attributes every time, you only need to write a CSS rule for a tag and apply it to the tag of all instances, so the code is greatly reduced which means shorter download times.

(3) Easy to maintain: If you want to make global changes, you only need to change the style, and all elements in all web pages will be updated automatically.

(4)Multi-device compatibility: Style sheets allow content to be optimized for many different types of devices.

(5) The structure is clear and more convenient for search engines. By replacing nested tags with HTML that contains only structured content, search engines will find your content more efficiently and may give you a higher ranking.

(Learning video sharing: web front-end)

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