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This article will explain in detail what the style attribute of css means. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Brief introduction

Cascading style sheet (English full name: CascadingStyleSheets) is a computer language used to represent file styles such as HTML (an application of standard general markup language) or XML (a subset of standard general markup language). CSS can not only modify the web page statically, but also format the elements of the web page dynamically with various scripting languages.

CSS can accurately control the layout of elements in a web page at the pixel level, support almost all font size styles, and have the ability to edit web objects and model styles.

Language features

CSS provides a style description for HTML markup language, defining how the elements in it are displayed. CSS is a breakthrough in the field of Web design. It can be used to modify a small style to update all the page elements associated with it.

In general, CSS has the following characteristics:

Rich style definition

CSS provides a rich document-style appearance, as well as the ability to set text and background properties; allows you to create a border for any element, as well as the distance between the border and other elements, as well as the distance between the border and the content of the element; allows you to change the case, retouching, and other page effects of the text at will.

Easy to use and modify

CSS can define the style in the style attribute of the HTML element, in the header section of the HTML document, or declare the style in a special CSS file for reference by the HTML page. In short, CSS stylesheets can store and manage all style declarations in a unified manner.

In addition, you can categorize elements of the same style, define them with the same style, apply a style to all HTML tags with the same name, or assign a CSS style to a page element. If we want to change the style, we just need to find the appropriate style declaration in the style list to modify it.

Multi-page application

CSS stylesheets can be stored in a separate CSS file so that we can use the same CSS stylesheet in multiple pages. CSS stylesheets theoretically do not belong to any page file and can be referenced in any page file. In this way, the style of multiple pages can be unified.

Cascading

Simply put, cascading is setting the same style multiple times for an element, which uses the last set attribute value. For example, if you use the same set of CSS stylesheets for multiple pages in a site, and some elements of some pages want to use other styles, you can define a separate stylesheet for those styles to apply to the page. These later defined styles will override the previous style settings, and what you will see in the browser is the style effect of the last setting.

Page compression

In websites that use HTML to define page effects, it often requires a large number of or repeated tables and font elements to form text styles of various specifications, which results in a large number of HTML tags, thus increasing the size of the page file. Putting the style declaration separately in the CSS stylesheet can greatly reduce the size of the page, so the time used to load the page will be greatly reduced. In addition, the reuse of CSS stylesheets greatly reduces the size of the page and reduces the download time.

working principle

CSS is a language that defines style structures such as fonts, colors, locations, etc., and is used to describe the formatting and reality of information on web pages. CSS styles can be stored directly in HTML pages or in separate style sheet files. Either way, the stylesheet contains rules for applying styles to elements of the specified type. When used externally, style order rules are placed in an external style order document with the file extension _ css.

Style rules are formatting instructions that can be applied to elements in a web page, such as text paragraphs or links. A style rule consists of one or more style properties and their values. The internal style sheet is placed directly in the web page, the external style sheet is saved in a separate document, and the web page links the external style sheet through a special tag.

The "cascading" in the name CSS indicates how style order rules are applied to HTML document elements. Specifically, the styles in the CSS stylesheet form a hierarchy, and more specific styles override generic styles. The priority of the style rules is determined by CSS according to this hierarchy, thus achieving the cascading effect.

This is the end of this article on "what does the style attribute of css mean?" I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it out for more people to see.

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