There might be scenarios where a child component needs to customize the style of its parent element. You can achieve it using a ref. A ref is simply a function in React that allows you to access a DOM element when it is attached to the DOM.
It's important to note that directly modifying the style of a parent component from a child is not possible through standard CSS. While the :has() CSS selector can conditionally style a parent based on a child, it must still be applied from the parent component itself, not the child.
Here’s a practical example where a child component removes padding from its parent element:
const Child = () => {
return (
<div
ref={(childElement) => {
if (childElement) {
childElement.parentElement!.style.padding = "0"; // Remove padding from the parent
}
}}
>
I am the child
</div>
);
};
const Parent = () => {
return (
<div>
<hr>
<h3>
How Does This Work?
</h3>
<ol>
<li>
<p><strong>What is ref?</strong></p>
<ul>
<li>
ref is a React prop that allows you to access a DOM element after it is mounted (added to the DOM).</li>
</ul>
</li>
<li>
<p><strong>When Does It Run?</strong></p>
<ul>
<li>The ref function runs when the DOM element is attached.</li>
</ul>
</li>
</ol>
<hr>
<p>This approach is quick and works for specific use cases where you need to make minor adjustments to parent styles from a child component.</p>
The above is the detailed content of Customizing Parent Style from a Child Component in React. For more information, please follow other related articles on the PHP Chinese website!
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