diff --git a/specs/file/file-1.0-diff.html b/specs/file/file-1.0-diff.html
index dcdc7e5..6602922 100644
--- a/specs/file/file-1.0-diff.html
+++ b/specs/file/file-1.0-diff.html
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html
   PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module 1.0 -- Review Version</title><link rel="stylesheet" type="text/css" href="http://www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
+<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module 1.0 -- Review Version</title><link rel="stylesheet" type="text/css" href="//www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
 code           { font-family: monospace; }
 
 div.constraint,
diff --git a/specs/file/file-1.0.html b/specs/file/file-1.0.html
index 2474953..a916960 100644
--- a/specs/file/file-1.0.html
+++ b/specs/file/file-1.0.html
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html
   PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module 1.0</title><link rel="stylesheet" type="text/css" href="http://www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
+<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module 1.0</title><link rel="stylesheet" type="text/css" href="//www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
 code           { font-family: monospace; }
 
 div.constraint,
diff --git a/specs/file/file-20100517.html b/specs/file/file-20100517.html
index 5914660..bd5099e 100644
--- a/specs/file/file-20100517.html
+++ b/specs/file/file-20100517.html
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html
   PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module</title><link rel="stylesheet" type="text/css" href="http://www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
+<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module</title><link rel="stylesheet" type="text/css" href="//www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
 code           { font-family: monospace; }
 
 div.constraint,
diff --git a/specs/file/file-20120614-diff.html b/specs/file/file-20120614-diff.html
index b0a9705..15cbb8c 100644
--- a/specs/file/file-20120614-diff.html
+++ b/specs/file/file-20120614-diff.html
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html
   PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module -- Review Version</title><link rel="stylesheet" type="text/css" href="http://www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
+<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module -- Review Version</title><link rel="stylesheet" type="text/css" href="//www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
 code           { font-family: monospace; }
 
 div.constraint,
diff --git a/specs/file/file-20120614.html b/specs/file/file-20120614.html
index 3ae3523..6bd7fe7 100644
--- a/specs/file/file-20120614.html
+++ b/specs/file/file-20120614.html
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html
   PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module</title><link rel="stylesheet" type="text/css" href="http://www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
+<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module</title><link rel="stylesheet" type="text/css" href="//www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
 code           { font-family: monospace; }
 
 div.constraint,
diff --git a/specs/file/file-20131203-diff.html b/specs/file/file-20131203-diff.html
index 5a213fa..c8c8c41 100644
--- a/specs/file/file-20131203-diff.html
+++ b/specs/file/file-20131203-diff.html
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html
   PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module -- Review Version</title><link rel="stylesheet" type="text/css" href="http://www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
+<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module -- Review Version</title><link rel="stylesheet" type="text/css" href="//www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
 code           { font-family: monospace; }
 
 div.constraint,
diff --git a/specs/file/file-20131203.html b/specs/file/file-20131203.html
index 6b7504c..3e0d37d 100644
--- a/specs/file/file-20131203.html
+++ b/specs/file/file-20131203.html
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html
   PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module</title><link rel="stylesheet" type="text/css" href="http://www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
+<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module</title><link rel="stylesheet" type="text/css" href="//www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
 code           { font-family: monospace; }
 
 div.constraint,
diff --git a/specs/file/file-diff.html b/specs/file/file-diff.html
index dcdc7e5..6602922 100644
--- a/specs/file/file-diff.html
+++ b/specs/file/file-diff.html
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html
   PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module 1.0 -- Review Version</title><link rel="stylesheet" type="text/css" href="http://www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
+<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module 1.0 -- Review Version</title><link rel="stylesheet" type="text/css" href="//www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
 code           { font-family: monospace; }
 
 div.constraint,
diff --git a/specs/file/file.html b/specs/file/file.html
index 2474953..a916960 100644
--- a/specs/file/file.html
+++ b/specs/file/file.html
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html
   PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module 1.0</title><link rel="stylesheet" type="text/css" href="http://www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
+<html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>File Module 1.0</title><link rel="stylesheet" type="text/css" href="//www.w3.org/StyleSheets/TR/base.css" /><style type="text/css">
 code           { font-family: monospace; }
 
 div.constraint,
diff --git a/tools/expathspec/src/shared.xsl b/tools/expathspec/src/shared.xsl
index ca1a03b..e619665 100644
--- a/tools/expathspec/src/shared.xsl
+++ b/tools/expathspec/src/shared.xsl
@@ -29,7 +29,7 @@
    <xsl:param name="analytics-id" select="'UA-5463082-2'"/>
    <xsl:param name="offline" select="false()"/>
 
-   <xsl:variable name="base-css"         select="'http://www.w3.org/StyleSheets/TR/base.css'"/>
+   <xsl:variable name="base-css"         select="'//www.w3.org/StyleSheets/TR/base.css'"/>
    <xsl:variable name="base-css-offline" select="'../../process/xmlspec/base.css'"/>
 
    <xsl:variable name="final-spec"   select="/spec/@role eq 'spec'"/>
diff --git a/tools/xmlspec/src/xmlspec.xsl b/tools/xmlspec/src/xmlspec.xsl
index 3e7fc02..71210ae 100644
--- a/tools/xmlspec/src/xmlspec.xsl
+++ b/tools/xmlspec/src/xmlspec.xsl
@@ -49,7 +49,7 @@
 
      14 August 2001: Hugo Haas <hugo@w3.org>
        - If w3c-doctype is not a W3C TR, do not use a Note style
-         sheet, use <http://www.w3.org/StyleSheets/TR/base.css>
+         sheet, use <//www.w3.org/StyleSheets/TR/base.css>
          instead.
        - If the other-doctype is "editors-copy", do not use the W3C
          logo and mark the document as such in the status section.
