fixing typo

Author: howcom

css3-values/Overview.src.html

@@ -1134,7 +1134,7 @@ <h2>Specified, computed, used, and actual values</h2>
 yields the <em>specified value</em> [[!CSS3CASCADE]]. Second, relative
 values are computed into absolute values as far as possible without
 formatting the document, thereby yielding the <em>computed value</em>.
-The computed value is tranformed into the <em>used value</em> in the
+The computed value is transformed into the <em>used value</em> in the
 formatting process. Finally, the computed value is transformed to
 the <em>actual value</em> based on constraints in the user agent.</p>