Iphone darkens div on click

When you have a div with a click handler attached, the iphone darkens the div as a click indicator, when the div is clicked.

Example: view on mob开发者_JAVA百科ile safari http://jsbin.com/awejo3/4

My question is, how do I turn this behavior off? This is probably useful for most iphone users, but in some types of rich media applications, this is bad.

Thanks.

You can set the "tap hightlight color" to transparent in css.

html
{
  -webkit-tap-highlight-color:transparent;
}