Is it possible to apply the backdrop filter property to both a parent element and its child elements in Webflow?

Yes, it is possible to apply the `backdrop-filter` property to both a parent element and its child elements in Webflow. However, there are a few considerations to keep in mind.

First, the `backdrop-filter` property is not supported in all browsers, so it is important to check browser compatibility before implementing it. At the time of writing this response, `backdrop-filter` is supported in modern versions of Chrome, Safari, and Firefox, but not in Internet Explorer or Microsoft Edge (prior to version 95).

To apply the `backdrop-filter` property to a parent element, you can simply add it to the parent element's style. For example, if you have a div with a class of "parent-element", you can add the following CSS code:

.parent-element {
backdrop-filter: blur(10px);
}

This will apply a backdrop blur with a strength of 10 pixels to the content behind the parent element.

To apply the `backdrop-filter` property to child elements, you can use pseudo-elements such as `::before` or `::after`. By adding these pseudo-elements to the parent element, you can target and apply the `backdrop-filter` property to them individually. For example:

.parent-element::before {
content: "";
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
backdrop-filter: blur(10px);
}

This will create an absolutely positioned pseudo-element that covers the entire area of the parent element and applies the backdrop blur effect to it.

Keep in mind that the `backdrop-filter` property can be resource-intensive, especially with higher blur or other filter values. It may affect the performance and responsiveness of your website, so it's a good practice to use it sparingly and consider its impact on user experience.

Lastly, note that Webflow provides a visual interface for designing and applying styles, including advanced effects like `backdrop-filter`. You can leverage the Webflow Designer to add custom code or use the built-in interactions to achieve the desired backdrop filter effects on your parent and child elements.