The show effect can display anything HMTL
Example JQUERY show
To display all elements <p>
It also allows the parameters "speed" and "callback"
The parameter "speed" indicates the milliseconds that it should take effect.
The parameter "callback" indicates JQUERY function to be executed at the end of the effect.
Example JQUERY show (speed, callback)
To show all <p> elements with a duration of 3 seconds and an alert that has completed the effect