​x
 
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>
​
<h2>Finding HTML Elements by Class Name</h2>
​
<p class="intro">Hello World!</p>
<p class="intro">Hello Sweden!</p>
<p class="intro">Hello Japan!</p>
​
<p id="demo"></p>
​
<script>
$(document).ready(function() {
  var myElements = $(".intro");
  $("#demo").text("The first paragraph with class='intro' is: " + myElements[0].innerHTML);
});
</script>
​
</body>
</html>
​