Fix content issues

[Josh-Cena]

• Fix "typos" (BrE spellings)
• Fix external links
• Follow up from replace ui pseudo-classes GH sample embeds #40891: use separate code blocks for styles/scripts.

[github-actions]

Preview URLs (7 pages)

• /en-US/docs/Learn_web_development/Core/Structuring_content/Marking_up_a_letter
• /en-US/docs/Learn_web_development/Core/Structuring_content/Structuring_a_page_of_content
• /en-US/docs/Learn_web_development/Core/Version_control
• /en-US/docs/Learn_web_development/Extensions/Forms/UI_pseudo-classes
• /en-US/docs/MDN/Community/Issues
• /en-US/docs/Web/CSS/CSS_borders_and_box_decorations
• /en-US/docs/Web/HTTP/Reference/Headers/Content-Security-Policy/frame-ancestors

Flaws (24)

Note! 5 documents with no flaws that don't need to be listed. 🎉

URL: /en-US/docs/Web/CSS/CSS_borders_and_box_decorations
Title: CSS borders and box decorations
Flaw count: 21

• macros:
  • Can't resolve /en-US/docs/Web/CSS/corner-shape
  • Can't resolve /en-US/docs/Web/CSS/corner-block-end-shape
  • Can't resolve /en-US/docs/Web/CSS/corner-block-start-shape
  • Can't resolve /en-US/docs/Web/CSS/corner-bottom-left-shape
  • Can't resolve /en-US/docs/Web/CSS/corner-bottom-right-shape
  • and 16 more flaws omitted

---

URL: /en-US/docs/Web/HTTP/Reference/Headers/Content-Security-Policy/frame-ancestors
Title: Content-Security-Policy: frame-ancestors directive
Flaw count: 3

• unknown:
  • No generic content config found
  • no blog root
  • no blog root

External URLs (5)

URL: /en-US/docs/Learn_web_development/Core/Structuring_content/Structuring_a_page_of_content
Title: Challenge: Structuring a page of content

• https://codepen.io/ (1 time) (Note! This may be a new URL 👀)
• https://jsfiddle.net/ (1 time) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/Learn_web_development/Core/Version_control
Title: Version control

• https://docs.github.com/en/issues/tracking-your-work-with-issues/learning-about-issues/about-issues (1 time) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/MDN/Community/Issues
Title: Creating and working on issues

• https://docs.github.com/en/issues/tracking-your-work-with-issues/learning-about-issues/about-issues (1 time) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/Web/HTTP/Reference/Headers/Content-Security-Policy/frame-ancestors
Title: Content-Security-Policy: frame-ancestors directive

• https://w3c.github.io/webappsec-csp/ (1 time) (Note! This may be a new URL 👀)

[bsmth]

Great, thanks 👍🏻