//wait until page is ready
$(document).ready(function() {
	//sets <a> element within paragraph  to yellow  
	$("p").click(function(){
		$(this).children("a").css("background-color", "yellow"); /* returns all the <a> child elements that are 
		within this paragraph*/
	});

	// Toggle the visibility of the paragraph when a button is clicked 
	$("button").click(function(){
		$(this).next().slideToggle('slow');
	});
});