<!DOCTYPE html>
<html>

<head>
        <meta charset="utf-8" />
        <title>change body style in angularjs</title>
        <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.js"></script>
        <script>
                var app = angular.module('styleApp', []);
                app.controller('styleAppCtrl', function($scope, $http, $document) {
                angular.element($document).find('body').removeClass('my-style-calss');
                });
        </script>
</head>

<body ng-app="styleApp" class="my-style-calss">
        <div ng-controller="styleCtrl">
               change body style in angularjs
        </div>

</body>

</html>
// Code goes here

/* Styles go here */