What is difference between selector and rule?

What is difference between selector and rule?

The selector specifies which element or elements in the HTML page the CSS rule applies to. Whereas, the declarations within the block determines how the elements are formatted on a webpage.

How do you declare a selector in CSS?

The selector points to the HTML element you want to style. The declaration block contains one or more declarations separated by semicolons. Each declaration includes a CSS property name and a value, separated by a colon.

What are the 4 CSS selectors?

CSS Selectors

  • Simple selectors (select elements based on name, id, class)
  • Combinator selectors (select elements based on a specific relationship between them)
  • Pseudo-class selectors (select elements based on a certain state)
  • Pseudo-elements selectors (select and style a part of an element)

What is a CSS selector MDN?

A CSS selector is the part of a CSS rule that describes what elements in a document the rule will match. The matching elements will have the rule’s specified style applied to them.

What is the example of declaration in CSS?

A CSS rule set contains one or more selectors and one or more declarations. The selector(s), which in this example is h1 , points to an HTML element. The declaration(s), which in this example are color: blue and text-align: center style the element with a property and value.

What are the limitations of CSS?

What is the limitations of CSS?

  • CSS cannot perform any logical operations like if/else or for/while or +/-.
  • We can not read any files using CSS.
  • It can not interact with databases.
  • CSS can not request a web page.

What is the basic syntax of selector in CSS?

Basic selectors Syntax: * ns|* *|* Example: * will match all the elements of the document. Selects all elements that have the given node name. Syntax: elementname Example: input will match any element. Selects all elements that have the given class attribute.

What does * do in CSS?

The asterisk (*) is known as the CSS universal selectors. It can be used to select any and all types of elements in an HTML page. The asterisk can also be followed by a selector while using to select a child object. This selector is useful when we want to select all the elements on the page.

Can I use CSS 4?

Most mobile devices have a delay in updating the background position after scrolling a page with fixed backgrounds. 4 Does not support fixed , and due to a bug only supports local if a border-radius is set on the element.

How do I find my CSS selector?

How to find CSS selector in Chrome browser

  1. Hover the cursor over the image and right click mouse.
  2. Select Inspect.
  3. See the highlighted image code.
  4. Right click on the highlighted code.
  5. Select Copy > Copy selector.

Is Pseudo a CSS?

A CSS pseudo-class is a keyword added to a selector that specifies a special state of the selected element(s). For example, :hover can be used to change a button’s color when the user’s pointer hovers over it.

What is the CSS rule?

A CSS rule is a grouping of one or more CSS properties which are to be applied to one or more target HTML elements. A CSS rule consists of a CSS selector and a set of CSS properties. CSS rules have to be specified inside either a style element or inside an external CSS file.