Typo (redundant "the").

Author: bert-github

css3-background/Overview.src.html

@@ -2757,7 +2757,7 @@ <h3 id="the-box-shadow">The 'box-shadow' property</h3>
 defined; however the resulting shadow must approximate (with each pixel
 being within 5% of its expected value) the image that would be generated
 by applying to the shadow a Gaussian blur with a standard deviation equal
-to the half the blur radius
+to half the blur radius
 
 <p class="note">Note this means for a long, straight shadow edge, the
 blur radius will create a visibly apparent color transition approximately