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Difference

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Misc

Create a 3D text effect using HTML and CSS Hover condition for a:before and a:after in CSS Bem CSS Boder Types CSS Features of CSS Font Face CSS Image Overlay CSS B Tag CSS Carousel CSS CSS Arrow CSS Focus Flex Grow in CSS Bem CSS Features of CSS Font Face CSS Removing Underline from Link in CSS Width Property in CSS Radio Button in CSS

CSS :root selector

CSS :root selector

This CSS pseudo-class matches any document’s root element. It chooses the parent of the highest-level inside the document DOM or tree.

An element of <html> is always a root element in HTML. But the :root selector is similar to the html selector. It is because both the elements target the same element, although the selector :root includes the higher specificity.

Syntax:

:root {  
    // CSS property  
}  

Example:

<!DOCTYPE html>
<html>
<head>
<title> :root selector </title>
<style>
:root
{
 background: yellow;
 color: red;
 text-align: center;
}
</style>
</head>
<body>
<h1> Welcome to this Page </h1>
<h2> The :root selector is specified in this example. </h2>
</body>
</html>

Output:

CSS :root selector

Let’s try another method in which :root selector or html selector will implement simultaneously. If both these selector will implement within the specificity matter, the :root selector will win.

In the following example, we are using similar properties in both the selectors, i.e., :root selector and html selector. The :root selector properties will execute due to the higher specificity. Although a few properties are defined in the html selector but not in the :root selector, the html selector’s properties will work.

Example:

<!DOCTYPE html>
<html>
<head>
<title> :root selector </title>
<style>
:root
{
 background: violet;
 color: purple;
 text-align: center;
}
html
{
 background: yellow;
 color: red;
 font-size: 30px;
}
</style>
</head>
<body>
<h1> Welcome to this Page </h1>
<h2> The html selector and :root selector is specified in this example. </h2>
</body>
</html>

As we can define in the above illustration that the color and background-color properties both are defined in :root selector and also in the html selector. Although in the result, the :root selector properties will execute, due to the :root selector’s higher specificity.

Output:

CSS :root selector