<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdn.ckeditor.com/4.15.0/standard/ckeditor.js"></script>
<script>
$(document).ready(function(){
$("#save").click(function(){
var Content = CKEDITOR.instances['Content'].getData();
alert(Content);
});
CKEDITOR.replace('Content');
});
</script>
</head>
<body>
<textarea name="Content" id="Content" placeholder="Required, at least 4 characters"></textarea><br>
<button type="button" id="save">Save</button>
</body>
</html>