In this tutorial we will take a look at creating a Superbook using Bubblin’s online ‘book playground.’

Book playground

Bubblin lets you compose book online using its in-browser book playground—a simple code playground for page-by-page book editing. This editor is powerful enough for short stories, comics, weekly or biweekly magazines and other sort of miscellaneous items like greeting cards, restaurant menus and brochures. Theoretically speaking one could also write a novella and full length textbook using the same editor but this is generally not recommended.

For a really long body of work we recommend using Bookiza Abelone—a book reification framework instead.

The tutorial below will focus on using the in-browser book playground along with a quick overview on how Superbooks work:

Step - 1: Starting a new project

To start a new project, login into your Bubblin Account and click on the new button from the side panel under the Bubblin logo (see image below). 

Or press ‘⌘ + M’ to open a new manuscript project (other relevant keyboard shortcuts) on your browser, which will look something like this:

Three large dark colored (gray/black) textareas at the bottom to punch in HTML, CSS and JavaScript on each page of the book and a dropdown menu on the top with a large blue colored ‘Publish’ button near the site logo. The dropdown will have options book, page, layout and pricing on the menu with several options under each submenu. The editor will also show four bluish colored blank pages (two leafs) that can be navigated using left and right arrow keys (on keyboard) or buttons on the screen. Near the left of (gray/black) textarea, you’ll see a highlighted ActivePage indicating the page_number on which the editor is currently focused on.

Step - 2: Understanding Structure and Layout

First off, take a look at what each page looks like in on the inside. Do not worry if you haven’t written or seen HTML earlier in your life because we are going to use only very basic HTML for this tutorial and no knowledge or understanding of it is required for book writing on Bubblin.

Feel free to copy and paste the following code into the gray/black HTML textarea of the editor (bottom left of the editor).

The following HTML wrapper will sit on every page of the book:

<div class="leaf flex">
  <div class="inner justify ">
    <h1> Hello world! </h1>
    <p> Lorem ipsum dolor sit amet, <a href="https://wikipedia.com">consectetur</a> adipiscing elite... </p>

While you are at it also paste the same HTML wrapper into the HTML option under the Layout dropdown menu as shown below. Yes, paste it in both the places!

Note that we are using a cool flex class on leaf here that we’ll use shortly. Awesome! So now we have a heading text saying “Hello world!” and a bit of lorem ipsum inside a paragraph tag on the first page, but there is no layout. We’ll add that next, a layout: 

Go to the Layout dropdown menu again and click open the CSS option as shown below:

Sprinkle the following template into the CSS textarea to apply a layout and typesetting into the book. Hit save and you’ll see all the pages turning white and some formatting applied to the initial lorem ipsum text we pasted earlier:

html, body {
  background: #fff;
  margin: 0 0;
  overflow: hidden;
  color: #010203;
  font-family: 'EB Garamond', serif;
  font-style: normal;
  font-synthesis: none;
  font-stretch: ultra-condensed;
  font-variant: no-common-ligatures proportional-nums slashed-zero;
  font-size: 4vw;
  line-height: calc(4vw * 1.50);
  font-kerning: normal;
  text-rendering: geometricPrecision;

h1, h2, h3, h4 {
  margin: 1vw 0;
  padding: 0;
  width: 100%;
  text-align: center;
  font-weight: 100;

h6 {
    font-family: 'PT Sans Narrow', serif;    
    margin: 2vw 0;
    padding: 0;

img {
  border: 0;
  -ms-interpolation-mode: bicubic;

a {
  color: #0077ff;
  outline: 0 none;
  text-decoration: none;

a:hover {
  outline: 0 none;
  color: #070;

a:active {
  text-shadow: 0 0 2px #fff;

/* Page specific */

.leaf {
  height: 100%;
  height: 100vh;
  width: 100%;
  width: 100vw;
  margin: auto;

.inner {
  margin: calc((100vh - (17 * (4vw * 1.5) + 4vw))/2) auto; 
  width: 85vw;
  max-height: calc(17 * (4vw * 1.5) + 4vw);
  break-after: right; 

.flex {
  display: -webkit-box;
  display: flex !important;
  align-items: center;
  justify-content: center;

.justify {
  text-align: justify;

p {
    text-indent: 5vw;  
    margin: 0 0 0 0;
/*    -webkit-hyphens: auto;
    -moz-hyphens: auto;
    hyphens: auto; 

.no-indent {
  text-indent: 0;

.stretch-last-line {
  text-align-last: justify;

.squeeze-para {
  letter-spacing: -0.5px;

hr.section {
  border: 0;
  text-align: center;
  height: calc(4vw * 1.50);          /* Take a break of two lines only. */
  margin: calc((4vw * 1.50)/2) 0; 

hr.section::after {
  content: "";

hr.section::before {
  content: "❖"; 
  color: black;

hr {
  border: 0;
  text-align: center;
  height: calc(4vw * 1.50);          /* Take a break of two lines only. */
  margin: calc((4vw * 1.50)/2) 0; 

hr::after {
  content: " ";

hr::before {
  content: "== ❖ ==";
  color: black;

  padding: calc(4vw * 1) 0;

.center {
  text-align: center;
  margin:0 auto;

.small {
  font-size: 80%;

blockquote {
  font-size: 90%;
  font-style: italic;
  quotes: "\201C""\201D""\2018""\2019";
  width: 90%;
  margin: calc( 4 * (150vh *(1115/1443))/100 * 7/5) auto;

blockquote p {
  margin: calc( 4 * (150vh *(1115/1443))/100 * 7/5) auto !important;

pre, code {
  white-space: pre-wrap;     
  white-space: -moz-pre-wrap;
  white-space: -pre-wrap;  
  white-space: -o-pre-wrap;
  word-wrap: break-word;
  margin: 0 auto calc( 4 * (150vh *(1115/1443))/100 * 7/5); 
  font-size: 90%;  

h3 {
  font-family: 'Josefin Sans', sans-serif;
  line-height: 1.2em;
  font-size: 200%;  

.zcool {
  font-family: 'Josefin Sans', sans-serif;
  line-height: 1.2em;

.uppercase {
  text-transform: uppercase;  

/* Custom style below line */

Wow. Did you see what just happened here?

When you save the layout template, all the pages of the book change simulatneously. This is a very powerful feature because it lets you apply a uniform layout across the entire book from just one place. At the same time there is flexibility of adding CSS on each individual page using the gray/black textarea on the book editor.

How cool is that!?

CSS will format your book, add desired typography and position the content i.e heading “hello world” and the paragraphs near the mid-axis of the book. It will also set up faux margin & padding on either sides of the text, both above and below—in a way that is always balanced near the horizontal axis of the page. Say thanks to flexbox css property for this!

Stick no more than 16-18 lines of text per page. Always test your book by previewing and resizing your browser.

Do not cram in too much content on just one page. Stick to just two small-sized paragraphs or three small lines at most. Flip over to the next page if line is breaking and always maintain visual symmetry to avoid overflow and for better line-tracking. Continue adding new pages into your book until the story finishes. New pages will automatically use the layout CSS and HTML template we just added in the Layout dropdown above. When your book is ready hit Publish and serve it hot on the wire. That’s it: in just two bold steps your book is now available to anyone on the planet. And outside, even on the ISS… ;-)

You see what we did there?