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This article mainly explains "what problem can CSS solve". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what problem can CSS solve"?

I. definition and interpretation of CSS

CSS is short for Cascading Style Sheets (cascading style sheet). CSS is a technology called style sheets (stylesheet). Some people call it "cascading style sheets" (Cascading Stylesheet).

II. Basic grammar and structure of CSS

In fact, the CSS code is made up of the most basic statements.

The structure of its basic statement syntax is as follows:

Selector {attribute: attribute value} examples such as: # yangshi {width: 156pxposition heightbank 25px;}

The use of CSS technology in web page making can effectively achieve more accurate control over the layout, font, color, background and other effect attributes of the page with common properties. As long as you make some simple changes to the corresponding CSS code in the web page HTML, you can change the appearance and formatting style of the same page or the whole site using this "selection class".

Third, the function of CSS can achieve the effect and characteristics:

(1) can be used on almost all browsers.

(2) in the past, some functions that had to be realized through picture conversion can now be easily realized with CSS, thus downloading the page more quickly.

(3) make the font of the page more beautiful and easier to arrange, so that the page is really pleasing to the eye.

(4) you can easily control the layout of the page.

(5) you can update the style and format of many web pages at the same time, without having to update them page by page. You can use a CSS file to control all the page styles on your site, and as long as you change the corresponding lines in this CSS file, all pages of the entire site will change accordingly. Think about it, how do we control the color and size of fonts and the fonts we use before using CSS? We generally use HTML tags to implement, the code is very cumbersome. It's hard to imagine that if you need to change the color size of fonts frequently on a page, the resulting HTML code must be bloated. To be honest, CSS was born to simplify this kind of work, and of course its function is by no means that simple. The combination of DIV CSS is through the idea of controlling the style of the page structure to control the style attributes of the whole page. The browser renders the CSS property through the CSS class interpretation to represent the style set in the style.

What problem does CSS solve for us-the role of CSS?

Through the previous we know that CSS is only a technology or a synonym for something, so what exactly is the role of CSS, what problems can CSS help us solve?

CSS works with DIV or div+css to solve problems:

1, CSS technology helps us to control the page font size, page width, page content from left to right, font style, some pages in the regional background picture, background color, hyperlink mouse event style, picture center, text center, page content plate spacing and other styles (patterns).

2. Style control of some tag elements in the web page, such as headings and paragraphs.

, span, list, and other web page element settings control, including the text image size, DIV CSS layout width color and other attributes mentioned above.

Thank you for your reading, the above is the content of "what problem can CSS solve". After the study of this article, I believe you have a deeper understanding of what problem CSS can solve, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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