Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Mount the downloaded WebStorm-10*.dmg disk image file as another disk in your system."

A block of code is set as follows:

fn main() {
     println!("Hello, world!");
 }

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

if 3 > 4 {
    println!("Uh-oh. Three is greater than four.");
}
else if 3 == 4 {
    println!("There seems to be something wrong with math.");
}

Any command-line input or output is written as follows:

$ mkdir css
$ cd css

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."