diff --git a/.editorconfig b/.editorconfig
index 625d610..df39c7c 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -12,6 +12,9 @@ max_line_length = 100
 [Makefile]
 indent_style = tab
 
+[*.md]
+max_line_length = off
+
 [*.bs]
 indent_size = 1
 
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index af3476e..f10e74c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,4 +1,5 @@
 name: Build
+
 on:
   pull_request:
     branches:
@@ -6,17 +7,20 @@ on:
   push:
     branches:
     - main
+  workflow_dispatch:
+
 jobs:
   build:
     name: Build
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 2
-    - uses: actions/setup-python@v4
+    - uses: actions/setup-python@v5
       with:
         python-version: "3.11"
+    - run: pip install bikeshed && bikeshed update
     # Note: `make deploy` will do a deploy dry run on PRs.
     - run: make deploy
       env:
diff --git a/Makefile b/Makefile
index 4a9f6e2..b404c58 100644
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,7 @@ remote: quirks.bs
 	);
 
 local: quirks.bs
-	bikeshed spec quirks.bs quirks.html --md-Text-Macro="COMMIT-SHA LOCAL COPY"
+	bikeshed spec quirks.bs quirks.html --md-Text-Macro="COMMIT-SHA LOCAL-COPY"
 
 deploy: quirks.bs
 	curl --remote-name --fail https://resources.whatwg.org/build/deploy.sh
diff --git a/PULL_REQUEST_TEMPLATE.md b/PULL_REQUEST_TEMPLATE.md
index dbd9f70..a4817be 100644
--- a/PULL_REQUEST_TEMPLATE.md
+++ b/PULL_REQUEST_TEMPLATE.md
@@ -1,6 +1,8 @@
 <!--
 Thank you for contributing to the Quirks Mode Standard! Please describe the change you are making and complete the checklist below if your change is not editorial.
-When editing this comment after the PR is created, check that PR-Preview doesn't overwrite your changes.
+
+When you submit this PR, and each time you edit this comment (including checking a checkbox through the UI!), PR Preview will run and update it. As such make any edits in one go and only after PR Preview has run.
+
 If you think your PR is ready to land, please double-check that the build is passing and the checklist is complete before pinging.
 -->
 
diff --git a/quirks.bs b/quirks.bs
index 3b51def..bd37f2c 100644
--- a/quirks.bs
+++ b/quirks.bs
@@ -52,6 +52,12 @@ spec:selectors-4;
     type:selector; text::hover
     type:dfn; text:type selector
 spec:css-page-floats-3; type:value; text:none
+spec:css-backgrounds-3
+    type:property; text:border-top-width
+    type:property; text:border-bottom-width
+    type:property; text:border-right-width
+    type:property; text:border-left-width
+
 </pre>
 
 <style>
@@ -299,7 +305,7 @@ it matches the following conditions:
 
  <li><p>|body| is not an <a>inline-level</a> element.
 
- <li><p>|body| is not a <a>spanning element</a>. [[!CSS3-MULTICOL]]
+ <li><p>|body| is not a <a>multi-column spanning element</a>. [[!CSS3-MULTICOL]]
 
 </ul>