jQuery fadeTo() method is used to fading to a given opacity.
speed: It specifies the speed of the delay. Its possible vales are slow, fast and milliseconds.
opacity:It specifies the opacity. The opacity value ranges between 0 and 1.
easing: It specifies the easing function to be used for transition.
callback: It is also an optional parameter. It specifies the function to be called after completion of fadeToggle() effect.
Let's take an example to demonstrate jQuery fadeTo() effect.Test it Now
See the fadeTo() method example with different parameters.