Book Image

AMP: Building Accelerated Mobile Pages

By : O'Donoghue
Book Image

AMP: Building Accelerated Mobile Pages

By: O'Donoghue

Overview of this book

Google introduced the Accelerated Mobile Pages (AMP) project to give mobile users lightning-fast response times when accessing web pages on mobile devices. AMP delivers great user experiences by providing a framework for optimizing web pages that otherwise would take much longer to load on a mobile platform. This book shows how to solve page performance issues using the mobile web technologies available today. You will learn how to build instant-loading web pages, and have them featured more prominently on Google searches. If you want your website to succeed on mobile, if you care about SEO, and if you want to stay competitive, then this book is for you! You will go on a mobile web development journey that demonstrates with concrete examples how to build lightning-fast pages that will keep your visitors on-site and happy. This journey begins by showing how to build a simple blog article-style web page using AMP. As new concepts are introduced this page is gradually refined until you will have the skills and confidence to build a variety of rich and interactive mobile web pages. These will include e-commerce product pages, interactive forms and menus, maps and commenting systems, and even Progressive Web Apps.
Table of Contents (17 chapters)
14
Actions and Events
16
amp-bind Permitted Attribute Bindings

Using CSS in AMP pages

We're not finished converting our page to AMP just yet; let's deal with the validation error that mentions the style sheet next:

The attribute 'href' in tag 'link rel=stylesheet for fonts' is set to the invalid value 'style.css'.

One of the ways that AMP achieves its speed is by forbidding linked external style sheets. This means that all CSS must be inlined in the <head> of your AMP page. Open up the style sheet, and copy-paste all of the CSS rules you find into the AMP document. You'll need to wrap this CSS in a <style amp-custom> tag like this:

<style amp-custom>
html, body, ul {
margin:0;
padding:0;
}
...
</style>
You can only have one <style> tag in your AMP document, and it must include the amp-custom attribute.

Inlined CSS is limited to 50 KB per page, which is considered...