CSS :only-of-type Selector

` tag present.

B. How it Differs from Other Selectors

The :only-of-type selector is different from the :only-child selector. While :only-child selects an element if it is the only child of its parent, the :only-of-type selector focuses solely on the type of element. An element can be the only of its type while still having siblings that are of different types.

III. Browser Compatibility

A. Overview of Support in Different Browsers

The :only-of-type selector is widely supported across all modern browsers including Chrome, Firefox, Safari, and Edge. Below is a table summarizing its compatibility:

B. Importance of Checking Compatibility for Web Development

Checking compatibility is crucial in web development to ensure consistent behavior across different users’ browsers. Using features not supported in targeted browsers can lead to styling issues or non-functional designs.

IV. Syntax

A. Basic Syntax of the :only-of-type Selector

The basic syntax of the :only-of-type selector looks like this:

element:only-of-type {
    /* CSS properties */
}

B. Examples of How to Implement it in CSS

Here’s a simple implementation example:

p:only-of-type {
    color: blue;
    font-weight: bold;
}

This code will style a `

` element that is the only `

` tag within its parent element to have blue text and bold font weight.

V. Examples

A. Simple Example of :only-of-type in Use

Let’s look at a basic HTML structure:

<div>
    <p>This is a paragraph that will be styled.</p>
    <div>This is a nested div.</div>
    <p>Another paragraph.</p>
</div>

Applying CSS with the :only-of-type selector:

div p:only-of-type {
    background-color: yellow;
}

In this example, only the first `

` inside the `

<article>
    <section>
        <h2>Title 1</h2>
        <p>First paragraph.</p>
    </section>
    <section>
        <h2>Title 2</h2>
        <p>Second paragraph.</p>
        <p>Third paragraph.</p>
    </section>
    <section>
        <h2>Title 3</h2>
    </section>
</article>

section:only-of-type {
    border: 2px solid red;
}