@section Text Scale
@cindex adjust buffer font size
-@cindex font size, increase or decrease
+@cindex font size of @code{default} face, increase or decrease
@findex text-scale-adjust
@kindex C-x C-+
@kindex C-x C--
@kindex C-x C-0
@kindex C-wheel-down
@kindex C-wheel-up
- To increase the font size in the current buffer, type @kbd{C-x C-+}
-or @kbd{C-x C-=}. To decrease it, type @kbd{C-x C--}. To restore the
-default (global) font size, type @kbd{C-x C-0}. These keys are all
-bound to the same command, @code{text-scale-adjust}, which looks at
-the last key typed to determine which action to take and adjusts the
-font size accordingly by changing the height of the default face.
-
- Most faces are affected by these font size changes, but not faces
-that have an explicit @code{:height} setting. The two exceptions to
-this are the @code{default} and @code{header} faces: They will both be
-scaled even if they have an explicit @code{:height} setting.
+ To increase the font size of the @code{default} face in the current
+buffer, type @kbd{C-x C-+} or @kbd{C-x C-=}. To decrease it, type
+@kbd{C-x C--}. To restore the default (global) font size, type
+@kbd{C-x C-0}. These keys are all bound to the same command,
+@code{text-scale-adjust}, which looks at the last key typed to
+determine which action to take and adjusts the font size accordingly
+by changing the height of the default face.
+
+ Most faces don't have an explicit setting of the @code{:height}
+attribute, and thus inherit the height from the @code{default} face.
+Those faces are also scaled by the above commands.
+
+ Faces other than @code{default} that have an explicit setting of the
+@code{:height} attribute are not affected by these font size changes.
+The @code{header-line} face is an exception: it will be scaled even if
+it has an explicit setting of the @code{:height} attribute.
Similarly, scrolling the mouse wheel with the @kbd{Ctrl} modifier
pressed, when the mouse pointer is above buffer text, will increase or
-decrease the font size, depending on the direction of the scrolling.
+decrease the font size of the affected faces, depending on the
+direction of the scrolling.
The final key of these commands may be repeated without the leading
@kbd{C-x}. For instance, @kbd{C-x C-= C-= C-=} increases the face