Improve subsection titles.

docs/snippets/border_sub_title_align_all_example.md

@@ -1,38 +1,38 @@
 This example shows all border title and subtitle alignments, together with some examples of how (sub)titles can have custom markup.
- Open the code tabs to see the details of the code examples.
-
- === "Output"
-
-     ```{.textual path="docs/examples/styles/border_sub_title_align_all.py"}
-     ```
-
- === "border_sub_title_align_all.py"
-
-     ```py hl_lines="6 18 24 30 39 40 42 45 51 57 63"
-     --8<-- "docs/examples/styles/border_sub_title_align_all.py"
-     ```
-
-     1. Border (sub)titles can contain nested markup.
-     2. Long (sub)titles get truncated and occupy as much space as possible.
-     3. (Sub)titles can be stylised with Rich markup.
-     4. An empty (sub)title isn't displayed.
-     5. The markup can even contain Rich links.
-     6. If the widget does not have a border, the title and subtitle are not shown.
-     7. When the side borders are not set, the (sub)title will align with the edge of the widget.
-     8. The title and subtitle are aligned on the left and very long, so they get truncated and we can still see the rightmost character of the border edge.
-     9. The title and subtitle are centered and very long, so they get truncated and are centered with one character of padding on each side.
-     10. The title and subtitle are aligned on the right and very long, so they get truncated and we can still see the leftmost character of the border edge.
-     11. An auxiliary function to create labels with border title and subtitle.
-
- === "border_sub_title_align_all.css"
-
-     ```sass hl_lines="12 16 30 34 41 46"
-     --8<-- "docs/examples/styles/border_sub_title_align_all.css"
-     ```
-
-     1. The default alignment for the title is `left` and the default alignment for the subtitle is `right`.
-     2. Specifying an alignment when the (sub)title is too long has no effect. (Although, it will have an effect if the (sub)title is shortened or if the widget is widened.)
-     3. Setting the alignment does not affect empty (sub)titles.
-     4. If the border is not set, or set to `none`/`hidden`, the (sub)title is not shown.
-     5. If the (sub)title alignment is on a side which does not have a border edge, the (sub)title will be flush to that side.
-     6. Naturally, (sub)title positioning is affected by padding.
+Open the code tabs to see the details of the code examples.
+
+=== "Output"
+
+    ```{.textual path="docs/examples/styles/border_sub_title_align_all.py"}
+    ```
+
+=== "border_sub_title_align_all.py"
+
+    ```py hl_lines="6 18 24 30 39 40 42 45 51 57 63"
+    --8<-- "docs/examples/styles/border_sub_title_align_all.py"
+    ```
+
+    1. Border (sub)titles can contain nested markup.
+    2. Long (sub)titles get truncated and occupy as much space as possible.
+    3. (Sub)titles can be stylised with Rich markup.
+    4. An empty (sub)title isn't displayed.
+    5. The markup can even contain Rich links.
+    6. If the widget does not have a border, the title and subtitle are not shown.
+    7. When the side borders are not set, the (sub)title will align with the edge of the widget.
+    8. The title and subtitle are aligned on the left and very long, so they get truncated and we can still see the rightmost character of the border edge.
+    9. The title and subtitle are centered and very long, so they get truncated and are centered with one character of padding on each side.
+    10. The title and subtitle are aligned on the right and very long, so they get truncated and we can still see the leftmost character of the border edge.
+    11. An auxiliary function to create labels with border title and subtitle.
+
+=== "border_sub_title_align_all.css"
+
+    ```sass hl_lines="12 16 30 34 41 46"
+    --8<-- "docs/examples/styles/border_sub_title_align_all.css"
+    ```
+
+    1. The default alignment for the title is `left` and the default alignment for the subtitle is `right`.
+    2. Specifying an alignment when the (sub)title is too long has no effect. (Although, it will have an effect if the (sub)title is shortened or if the widget is widened.)
+    3. Setting the alignment does not affect empty (sub)titles.
+    4. If the border is not set, or set to `none`/`hidden`, the (sub)title is not shown.
+    5. If the (sub)title alignment is on a side which does not have a border edge, the (sub)title will be flush to that side.
+    6. Naturally, (sub)title positioning is affected by padding.

docs/styles/border_subtitle_align.md

@@ -40,7 +40,7 @@ This example shows three labels, each with a different border subtitle alignment
     ```
 
 
-### All title and subtitle combinations
+### Complete usage reference
 
 --8<-- "docs/snippets/border_sub_title_align_all_example.md"
 

docs/styles/border_title_align.md

@@ -40,7 +40,7 @@ This example shows three labels, each with a different border title alignment:
     ```
 
 
-### All title and subtitle combinations
+### Complete usage reference
 
 --8<-- "docs/snippets/border_sub_title_align_all_example.md"