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Included in:

- user-manual: Listing and Source Code Blocks: To wrap or to scroll
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The default Asciidoctor stylesheet wraps long lines in listing and literal blocks by applying the CSS `white-space: pre-wrap` and `word-wrap: break-word`.
The lines are wrapped at word boundaries, similar to how most text editors wrap lines.
This prevents horizontal scrolling which some users considered a greater readability problem than line wrapping.

However, this behavior is configurable because there are times when you don't want the lines in listing and literal blocks to wrap.

There are two ways to prevent lines from wrapping so that horizontal scrolling is used instead:

* `nowrap` block option
* unset the `prewrap` document attribute (on by default)

You can use the `nowrap` option on literal or listing blocks to prevent lines from being wrapped in the HTML.

// FIXME this section is creating broken AsciiDoc!!
.Listing block with nowrap option syntax
[source]
....
include::ex-listing.adoc[tag=nowrap]
....

When the nowrap option is used, the `nowrap` class is added to the `<pre>` element.
This class changes the CSS to `white-space: pre` and `word-wrap: normal`.

.Result: Listing block with nowrap option applied
====
include::ex-listing.adoc[tag=nowrap]
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To prevent lines from wrapping globally, unset the `prewrap` attribute on the document.

.Disable prewrap globally (thus, enabling nowrap)
[source]
----
:prewrap!:
----

When the prewrap attribute is unset, the `nowrap` class is added to any `<pre>` elements.

Now, you can use the line wrapping strategy that works best for you and your readers.