jQuery id selector

The jQuery #id selector uses the id attribute of an HTML tag to find the specific element.
 
An id should be unique within a page, so you should use the #id selector when you want to find a single, unique element.
 
To find an element with a specific id, write a hash character, followed by the id of the element:

<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js">
</script>
<script>
$(document).ready(function(){
  $("#myDiv1").css("background-color","#0F6")
  $("#myDiv1").html("ID Selectors");
});
</script>
</head>
<body>
	<p id="myDiv1"></p>
</body>
</html>