typo

Author: svgeesus

css-color-4/Overview.bs

@@ -1996,7 +1996,7 @@ HSL Colors: ''hsl()'' and ''hsla()'' functions</h2>
 	If the saturation or lightness are less than ''0%''
 	or greater than ''100%'',
 	they are clamped to those values
-	at parsed value time,
+	at parsed-value time,
 	before being converted to an sRGB color.
 
 	The final argument specifies the alpha channel of the color.