(docs) typos

Author: danburzo

docs/api.md

@@ -681,7 +681,7 @@ Creates a mapping that applies _fn_ on each channel of the color in the _mode_ c
 
 The resulting function accepts a single argument (a color object or a string), which it converts to the _mode_ color space if not already there.
 
-The _mode_ parameter can be omitted, in which case the mappe will iterate through all the channels in the color's original color space.
+The _mode_ parameter can be set to `null`, in which case the mapper will iterate through all the channels in the color's original color space.
 
 The _fn_ callback has the following signature:
 

docs/css/main.css

@@ -13,6 +13,9 @@ body {
 	--ff-main: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial,
 		sans-serif, Apple Color Emoji, Segoe UI Emoji;
 	--ff-code: 'Consolas', monospace;
+
+	text-size-adjust: none;
+	-webkit-text-size-adjust: none;
 }
 
 .container {