Execute
<!DOCTYPE html> <html> <head> <title>Wikitechy AngularJS Tutorials</title> </head> <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"></script> <style> form.ng-pristine { background-color:blue; } form.ng-dirty { background-color:green; } </style> <body ng-app=""> <form name="myForm"> <p>Enter any name in input field:</p> <input name="ngName" ng-model="ngName" required> </form> </body> </html>
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