How to Replicate iOS 7\'s Blur Effect Using CSS?

iOS 7's Blur Effect with CSS: A Closer Look

Apple's iOS 7 introduced a visually appealing blurred overlay effect. While it may appear to be a simple matter of transparency, this effect involves more than meets the eye.

Question: How can we replicate this effect using CSS and, if necessary, JavaScript?

Answer:

CSS 3 offers a solution to achieve this effect:

<code class="css">#myDiv {
    -webkit-filter: blur(20px);
    -moz-filter: blur(20px);
    -o-filter: blur(20px);
    -ms-filter: blur(20px);
    filter: blur(20px);
    opacity: 0.4;
}</code>

The blur() filter adds a blurring effect to the element, while the opacity property controls the transparency. To fine-tune the effect, experiment with different values for blur() and opacity.

Example:

Explore a live example of this code in action at JSFiddle.

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