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How To Return A Javascript Set Style Property To Css Default

When working on web development projects, you might come across situations where you need to manipulate the style properties of elements using JavaScript. One common task developers face is changing a style property temporarily and then returning it to its default CSS value. In this guide, we will walk you through how to return a JavaScript set style property to its CSS default.

Let's first understand the basics. When you apply a style property using JavaScript to an HTML element, it overrides any existing CSS rules that might be in place. The original value set in the CSS stylesheet becomes irrelevant since the inline style takes precedence.

To return a style property to its default value, you need to remove the inline style applied by JavaScript. Here's a step-by-step approach to achieving this:

1. Identify the Element: First, you need to identify the HTML element for which you want to revert the style property back to its default CSS value. You can do this by selecting the element using JavaScript. For example, you can use `document.getElementById()` or `document.querySelector()` to target the specific element.

2. Storing Default Values: Before modifying the style property, it's a good practice to store the default CSS value of the property. You can do this by accessing the computed CSS styles of the element. For example, to store the default `color` property of an element, you can use:

Js

const defaultColor = getComputedStyle(element).color;

3. Modify the Style Property: Next, you can change the style property of the element as needed. For example, let's say you change the `color` property:

Js

element.style.color = 'blue';

4. Reverting to Default: To return the style property to its default value, you simply need to remove the inline style applied by JavaScript. You can achieve this by setting the style property to an empty string, which removes the inline style entirely:

Js

element.style.color = '';

5. Complete Code Example: Putting it all together, here's a simple example demonstrating how to change and then revert the `color` property of an element:

Html

<div id="myElement">Change my color!</div>
   
     const element = document.getElementById('myElement');
     const originalColor = getComputedStyle(element).color;

     // Change color
     element.style.color = 'blue';

     // Revert to default color
     element.style.color = '';

By following these steps, you can easily manipulate style properties using JavaScript and return them to their default CSS values when needed. This approach ensures that your code remains maintainable and aligns with the cascading nature of CSS styles.

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