Gradually change the opacity of all <p> elements:
The fadeTo() method gradually changes the opacity, for selected elements, to a specified opacity (fading effect).
|speed||Required. Specifies the speed of the fading effect.
|opacity||Required. Specifies the opacity to fade to. Must be a number between 0.00 and 1.00|
|easing||Optional. Specifies the speed of the element in different points of the
animation. Default value is "swing"
|callback||Optional. A function to be executed after the
fadeTo() method is completed
To learn more about callback, visit our jQuery Callback chapter
fadeTo() - Using the callback parameter
How to use the callback parameter when fading in and out an element.