Invert "Google CSE" button colors
Follow "Google CSE" markup changes

`type="search` is better than `type="text"` for search box.
Use `normal` instead of `400`

`400` are not familiar.
Lighten color of `em` in "Tagline"
Rename variables for base fg/bg color
Use variable for colors of "Line Label"
Optimize "Elsewhere" & "Footlinks" height
Remove label from "Elsewhere"
Move "Elsewhere" right on medium screen
Move "Elsewhere" top on small screen
Decrease "Footlinks" top whitespace
Version 6.49.1