Start Your Site with Web Starter Kit

This guide steps you through the process of building a new site with Web Starter Kit and helps you make the most out of the tools it supplies.

Development phases

During development, there are three commands that you'll use regularly: gulp serve, gulp, and gulp serve:dist. Let’s look at how each one contributes to the development process.

Start a Local Server

The first task we’ll look at is: $ gulp serve.

On the surface, this task starts a local HTTP server so you can view your site in a browser, but behind the scenes there are some extra tools at work.

Live Reload

Live reload eliminates the traditional refresh dance of making a change in the editor, switching to the browser, hitting CTRL-R, and then waiting for the page to reload.

With Live Reload, you can make changes in your editor and see them take effect immediately in any browser with your site open.

Testing Across Devices

Browser Sync helps you test your site across multiple devices. Any scrolls, taps, or keyboard presses will be shared across any connected browser.

This only works when you run your site with gulp serve. Try it out by running gulp serve, open the URL in two browser windows side by side and scroll one of the pages.

Automate Prefixing

When targeting a range of browsers, you’ll need to use vendor prefixes to ensure you can use features in each of them. Web Starter Kit automates all of the prefixing for you.

Our example CSS (below) doesn’t include any vendor prefixes:

.app-bar-container {
  display: flex;

  width: 100%;
  height: 60px;
  position: relative;

  flex-direction: row;

  margin: 0 auto;

The build process runs the CSS through the autoprefixer which produces the final output below:

.app-bar-container {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;

  width: 100%;
  height: 60px;
  position: relative;

  -webkit-flex-direction: row;
      -ms-flex-direction: row;
          flex-direction: row;

  margin: 0 auto;

Check Your JavaScript

JSHint is a tool which scans your JavaScript code to check for possible problems with your JavaScript logic and enforces coding best practices.

The tool runs whenever you build the project or, if you are running gulp server, whenever you make a change to a JavaScript file.

Compile Your Sass

While you are running the serve command, any changes made to any of the Sass files in your project will get compiled into CSS and prefixed, after which your page will be reloaded with Live Reload.

For those new to Sass, the project describes itself as a “CSS extension language”. Essentially it’s CSS with some extra features. For example, it adds support for variables and functions, which help you structure your CSS in a modular and reusable fashion.

Build a Production Version of Your Site

You can build a production ready version of your site with the simple gulp command. This command runs some of the tasks we’ve seen already, with additional tasks aimed at making your site load faster and more efficiently.

The main tasks the production build performs are:

Build Styles

First the build will compile the Sass in your project. After the Sass has been compiled, the Autoprefixer runs over all the CSS.

Check your JavaScript for problems

The second build step runs JSHint over your JavaScript.

Build the HTML Pages

The next step examines your HTML files, looking for build blocks to concatenate and minify JavaScript. After the JavaScript is taken care of, the build process minifies the HTML page.

Minification reduces the number of characters in the final JavaScript file by removing comments or space characters that aren’t actually needed, as well as some other techniques. This reduces the final file size, speeding up your site’s load time.

Concatenation means pasting the contents of multiple files into one. The reason we do this is so that the browser only has to make one request to a server rather than many, which is faster for your users.

A build block has everything needed to manage which JavaScript files we minify and concatenate together. Let’s look at a sample build block:

<!-- build:js scripts/main.min.js -->
<script src="scripts/example-1.js"></script>
<script src="scripts/example-2.js"></script>
<!-- endbuild -->

A build block is nothing more than a specially formatted comment. All of your javascript files between the build block will be merged (concatenated) and minified into one file named main.min.js and the the final build will replace these scripts with the script tag:

<script src="scripts/main.min.js"></script>

Optimize any image assets

For JPEGs and PNGs, the meta data in the image is stripped out; it isn’t needed to render the image. The meta data includes information such as the camera used to take the photo.

For SVGs, it’ll remove any attributes which aren’t needed or any whitespace and comments that exist.

Copy Fonts

This simple task copies our fonts from the app to the the final build directory.

Copy over Any Files from the Root Directory

If the build finds any files in the root directory of the project, it will copy them over into the final build as well.

Test Your Production Build

Before you push anything into production, you need to make sure everything works as you'd expect. The gulp serve:dist command builds a production version of your site, starts a server, and opens a browser for you. This doesn’t have Live Reload or Browser Sync, but it’s a reliable way of testing your site before deploying it.

Set up Web Starter Kit

Web Starter Kit relies on NodeJS, NPM, and Sass to work. Once these are installed, you'll have everything you need to start using Web Starter Kit in your projects.

Install These One Time Dependencies

There are two tool sets you need to install on your machine before you can build sites with Web Starter Kit: NodeJS and NPM, & Sass.

NodeJS & NPM

Web Starter Kit’s build tools need Node and NPM. Node is used to run Gulp, the task runner. NPM is used to download the modules needed to perform certain tasks in Gulp.

If you aren’t sure if you have NodeJS and NPM, check by opening a command prompt and running node -v. If Node responds, check the version matches the current version on

If you don’t get a response or have an old version then go to and click the big green Install button. NPM will be installed with NodeJS automatically.

Set Up Your Web Starter Kit Project

The first step is to go to /web/tools/starter-kit/ and download and extract the zip. This will be the basis for your project so rename the folder and put it somewhere relevant on your machine. For the rest of this guide we'll call the folder my-project.

Next, you need to install the local dependencies for Web Starter Kit. Open a command prompt, change directory into your project folder and run the following npm install scripts.

cd my-project
npm install
npm install gulp -g

That’s it! You now have everything that's needed to use the Gulp tools in Web Starter Kit.