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Before and After Pseudo Selectors in CSS

In this article, we will learn about the Before and After Pseudo Selectors in CSS.

Before Pseudo Selector

In CSS, the before(::before/:before) pseudo selector creates a pseudo-element that is the first child of the element, we selected. The content property is frequently used to add decorative content to an element. By default, it’s inline.

Syntax:

/* CSS3 Syntax /
element::before {
/ CSS Styling */
}

/* CSS2 Syntax /
element:before {
/ CSS Styling */
}

Example:

HTML

<p> You will see a green box before this which is inserted by the ::before pseudo-selector. </p>

CSS

p::before {
content: “This is a green box”;
background-color: green;
}

Output:

You will see a green box before this which is inserted by the ::before pseudo-selector.

Before and After Pseudo Selectors

After Pseudo Selector

In CSS, the after(::after/:after) pseudo selector creates a pseudo-element that is the last child of the element, we selected. The content property is frequently used to add decorative content to an element. By default, it’s inline.

Syntax:

/* CSS3 Syntax /
element::after {
/ CSS Styling */
}

/* CSS2 Syntax /
element:after {
/ CSS Styling */
}

Example:

HTML

<p> You will see a green box after this which is inserted by the ::after pseudo-selector. </p>

CSS

p::after {
content: “This is a green box”;
background-color: green;
}

Output:

You will see a green box after this which is inserted by the ::after pseudo-selector.

That’s all about the Before and After Pseudo Selectors in CSS.

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