diff --git a/doc/webp-lossless-bitstream-spec.txt b/doc/webp-lossless-bitstream-spec.txt
index e732887d..4370996d 100644
--- a/doc/webp-lossless-bitstream-spec.txt
+++ b/doc/webp-lossless-bitstream-spec.txt
@@ -19,13 +19,11 @@ Abstract
 
 WebP lossless is an image format for lossless compression of ARGB images. The
 lossless format stores and restores the pixel values exactly, including the
-color values for pixels whose alpha value is 0. The format uses subresolution
-images, recursively embedded into the format itself, for storing statistical
-data about the images, such as the used entropy codes, spatial predictors, color
-space conversion, and color table. A universal algorithm for sequential data
-compression (LZ77), prefix coding, and a color cache are used for compression of
-the bulk data. Decoding speeds faster than PNG have been demonstrated, as well
-as 25% denser compression than can be achieved using today's PNG format.
+color values for fully transparent pixels. A universal algorithm for sequential
+data compression (LZ77), prefix coding, and a color cache are used for
+compression of the bulk data. Decoding speeds faster than PNG have been
+demonstrated, as well as 25% denser compression than can be achieved using
+today's PNG format.
 
 
 * TOC placeholder