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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//! An `Au` is an "App Unit" and represents 1/60th of a CSS pixel. It was
+//! originally proposed in 2002 as a standard unit of measure in Gecko.
+//! See <https://bugzilla.mozilla.org/show_bug.cgi?id=177805> for more info.
+
+extern crate num_traits;
+extern crate serde;
+
+mod app_unit;
+
+pub use app_unit::{Au, MIN_AU, MAX_AU, AU_PER_PX};