What are the css elements of web design?

CSS elements in web design include selectors, properties, values, rule sets, annotations, imports, and media queries. These elements work together to control the appearance of web pages by specifying HTML elements, modifying visual properties, and setting specific settings. Explicit order of application is critical, with the latter rule taking precedence, but the !important attribute can override this priority.

CSS elements in web design

CSS (Cascading Style Sheets) is a method used to describe the appearance of web pages. Style language. It allows web designers to control the visual presentation of web pages, including fonts, colors, and layout.

CSS elements include:

Selectors

• are used to specify the target of HTML elements.
• For example: h1, .btn, #footer

Attributes

• Used to set the appearance and behavior of HTML elements.
• For example: color, font-size, display

value

• is used to specify the value of the attribute.
• For example: black, 16px, block

Other elements

• Rule set: A set of rules containing selectors, attributes and values.
• Comment: Enclosed in /* */, comments that do not affect the appearance of the web page.
• Import: Used to introduce styles from external CSS files.
• Media query (Media query): Used to apply styles based on specific conditions (such as screen size or device type).

How CSS Elements Work

CSS elements work together to control the appearance of a web page.

1. The selector specifies the HTML element to which the style is to be applied.
2. Properties specify the specific visual properties to be modified.
3. The value specifies the specific setting of the attribute.

For example, the following CSS rule sets the text color of all <h1></h1> elements to red:

h1 {
  color: red;
}

Importance

The order in which CSS elements are applied is important. The latter rule overrides the previous one, unless the !important attribute is used.

The above is the detailed content of What are the css elements of web design?. For more information, please follow other related articles on the PHP Chinese website!