Blur effect on a div element

blur.css

div.blur {
  -webkit-filter: blur(5px);
  -moz-filter: blur(5px);
  -o-filter: blur(5px);
  -ms-filter: blur(5px);
  filter: blur(5px);
  width: 100px;
  height: 100px;
  background-color: #ccc;
}

blur.html

<div class="blur">blur me please</div>

Source: (https://stackoverflow.com/questions/11977103/blur-effect-on-a-div-element)
JsFiddle Demo: (http://jsfiddle.net/ayhj9vb0/)