Defined Edges With CSS3 Filter Blur

Issue

I am blurring some images with this code

img {
  filter: blur(5px);
  -webkit-filter: blur(5px);
  -moz-filter: blur(5px);
  -o-filter: blur(5px);
  -ms-filter: blur(5px);
}

The edges of the image get blurred too though. Is it possible to blur the image, while keeping the edges defined? Like an inset blur or something?

Solution

You could put it in a <div> with overflow: hidden; and set the <img> to margin: -5px -10px -10px -5px;.

Demo:

Output

CSS

img {
    filter: blur(5px);
        -webkit-filter: blur(5px);
        -moz-filter: blur(5px);
        -o-filter: blur(5px);
        -ms-filter: blur(5px);
    margin: -5px -10px -10px -5px;
}

div {
    overflow: hidden;
}
​

HTML

<div><img src="http://placekitten.com/300" />​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​</div>​​​​​​​​​​​​

Answered By - ThinkingStiff