jQuery slideDown() Method
Example
Slide-down (show) all hidden <p> elements:
  
    $("button").click(function(){
     $("p").slideDown();
 });
  
Try it Yourself »
Definition and Usage
The slideDown() method slides-down (shows) the selected elements.
Note: slideDown() works on elements hidden with jQuery methods and display:none in CSS (but not visibility:hidden).
Tip: To slide-up (hide) elements, look at the slideUp() method.
Syntax
$(selector).slideDown(speed,easing,callback)
| Parameter | Description | 
|---|---|
| speed | Optional. Specifies the speed of the slide effect. Default value is 400 milliseconds Possible values: 
 | 
| easing | Optional. Specifies the speed of the element in different points of the animation. Default value is "swing" Possible values: 
 | 
| callback | Optional. A function to be executed after the slideDown() method is completed To learn more about callback, visit our jQuery Callback chapter | 
Try it Yourself - Examples
slideDown() - Using the speed parameter
How to use the speed parameter to specify the speed of the slide effect.
slideDown() - Using the callback parameter
How to use the callback parameter when sliding up and down the selected elements.

