In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text are shown as follows: "The topLayer() and bottomLayer() actions are similar too, they move the specified layer to the top or bottom of the stack."

A block of code is set as follows:

<style> 
    html, body { 
        width: 100%; 
        height: 100%; 
        margin: 0; 
        padding: 0; 
    } 
</style>

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "The layer opacity is set to 50% in the following screenshot."