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.

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

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