What are the uses of css

Usage of css: 1. When you want to apply the same style consistently on all or part of the web pages on the site, you can use external style sheets; 2. When people just want to define the style of the current web page, you can use embedding Style sheet; 3. Exists as an attribute tag of HTML tag.

The operating environment of this tutorial: windows7 system, css3 version, DELL G3 computer.

css usage:

External formula:

(1) Usage: When you want to use all or part of the site External style sheets are used when you apply the same style consistently across a web page. Defining styles in one or more external style sheets and linking them to all web pages ensures a consistent look across all web pages. If people decide to change the style, they only need to modify it once in the external style sheet, and the change will be reflected on all pages linked to the style sheet.

(2) Example: Usually external style sheets have .css as the file extension, such as Mystyles.css. Then link it in the pages that require this style.

Embedded:

(1) Usage: When people just want to define the style of the current web page, embedded style sheets can be used. An embedded style sheet is a cascading style sheet that is "embedded" within the tag of a web page. Styles in embedded style sheets can only be used on the same web page.

(2) Example: In Microsoft FrontPage2000, some formatting features are automatically applied as inline styles. For example: If you use the Borders & Shadows command (on the Format menu) to apply a box around an ordinary paragraph, FrontPage writes the formatting information as inline style properties for the paragraph mark.

Inline style:

Inline style is to directly add CSS code to the HTML markup, that is, it exists as an attribute tag of the HTML markup. In this way, you can easily define styles for an element individually.

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