nguyenhoangsin

##Windows users:

cmder will be refered as console

##Mac Os, Ubuntu and windows users continue here:

	<!DOCTYPE html>
	<html>

	<head>
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<link href="https://fonts.googleapis.com/css?family=Roboto:400,500" rel="stylesheet">
	<style>
	.wrapper {
	padding: 0;
	margin: 0;

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Document</title>
	<style>
	.wrapper {

	<div class="panel-group">
	<div class="jsCollapseItem panel panel-default">
	<div class="panel-heading">
	<a class="jsCollapseItemHead accordion">
	<h4 class="panel-title">
	Collapsible Group Item #1
	<i class="material-icons">keyboard_arrow_down</i>
	</h4>
	</a>
	</div>

	var currencyValidator = {
	format: function (number) {
	return (Math.trunc(number * 1000000000000) / 1000000000000).toFixed(2)
	},
	parse: function (newString, oldNumber) {
	var CleanParse = function (value) {
	return { value: value }
	}
	var CurrencyWarning = function (warning, value) {
	return {

	"use strict";
	const webpack = require('webpack-stream');
	const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
	const runSequence = require('run-sequence');
	const browserSync = require('browser-sync').create();
	const del = require('del');
	const gulp = require('gulp');
	const $ = require('gulp-load-plugins')({
	scope: [
	'devDependencies'

	var yargs = require('yargs');

	function checkPrimeNumber(n) {
	var flag = true;
	if (isNaN(n)) {
	flag = false;
	} else if (n < 2) {
	flag = false;
	} else if (n > 2) {
	for (var i = 2; i <= 7; i++) {

	<html>
	<body>

	<style>
	div.block1 {
	margin: 100px;
	border: 1px solid #0000cc;
	height: 200px;
	width: 200px;
	animation: chuyenDong 5s infinite linear;