Fix: Update overflow property in reset.css

.changeset/blue-trees-shave.md

@@ -0,0 +1,15 @@
+---
+"@astrojs/starlight": minor
+---
+
+Changes text overflow styling in Markdown content
+
+⚠️ **Potentially breaking change:** This release switches the [`overflow-wrap`](https://developer.mozilla.org/en-US/docs/Web/CSS/overflow-wrap) CSS style for common elements to `break-word`. In most cases, there should be little visual impact, but this change can impact how layouts with implicit sizing (such as tables) look, improving legibility in how words wrap.
+
+If you want to preserve the previous styling, you can add the following custom CSS to your site:
+
+```css
+p, h1, h2, h3, h4, h5, h6, code {
+  overflow-wrap: anywhere;
+}
+```

packages/starlight/style/reset.css

@@ -41,7 +41,7 @@
 	h5,
 	h6,
 	code {
-		overflow-wrap: anywhere;
+		overflow-wrap: break-word;
 	}
 
 	code {