Example

Gradually change the opacity of a p element:

$("button").click(function(){
  $("p").fadeTo(1000,0.4);
});

Try it yourself »

Definition and Usage

The fadeTo() method gradually changes the opacity, for selected elements, to a specified opacity (fading effect).

Syntax

$(selector).fadeTo(speed,opacity,callback)

Parameter Description
speed Required. Specifies the speed of the fading effect.

Possible values:

  • milliseconds (like 1500)
  • "slow"
  • "normal"
  • "fast"
opacity Required. Specifies the opacity to fade to. Must be a number between 0.00 and 1.00
callback Optional. A function to be executed after the fadeTo() method is completed.

To learn more about callback, visit our jQuery Callback chapter.