Fix CSS, I mistakenly removed more from it than I should have!

31 files changed, 31 insertions, 31 deletions

diff --git a/docs/en/cowboy/2.4/guide/constraints/index.html b/docs/en/cowboy/2.4/guide/constraints/index.html
index 80217dba..24e7d374 100644
--- a/docs/en/cowboy/2.4/guide/constraints/index.html
+++ b/docs/en/cowboy/2.4/guide/constraints/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Constraints</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/cookies/index.html b/docs/en/cowboy/2.4/guide/cookies/index.html
index b5f5ac06..e1712cff 100644
--- a/docs/en/cowboy/2.4/guide/cookies/index.html
+++ b/docs/en/cowboy/2.4/guide/cookies/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Using cookies</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/erlang_web/index.html b/docs/en/cowboy/2.4/guide/erlang_web/index.html
index 57c65c39..a3614e25 100644
--- a/docs/en/cowboy/2.4/guide/erlang_web/index.html
+++ b/docs/en/cowboy/2.4/guide/erlang_web/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Erlang and the Web</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/flow_diagram/index.html b/docs/en/cowboy/2.4/guide/flow_diagram/index.html
index 95afd45a..80cfe23d 100644
--- a/docs/en/cowboy/2.4/guide/flow_diagram/index.html
+++ b/docs/en/cowboy/2.4/guide/flow_diagram/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Flow diagram</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/getting_started/index.html b/docs/en/cowboy/2.4/guide/getting_started/index.html
index cb2d7c78..e3ff103d 100644
--- a/docs/en/cowboy/2.4/guide/getting_started/index.html
+++ b/docs/en/cowboy/2.4/guide/getting_started/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Getting started</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/handlers/index.html b/docs/en/cowboy/2.4/guide/handlers/index.html
index fd67a00d..42d3a6d0 100644
--- a/docs/en/cowboy/2.4/guide/handlers/index.html
+++ b/docs/en/cowboy/2.4/guide/handlers/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Handlers</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/index.html b/docs/en/cowboy/2.4/guide/index.html
index ac41a940..a3f7a8f3 100644
--- a/docs/en/cowboy/2.4/guide/index.html
+++ b/docs/en/cowboy/2.4/guide/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Cowboy User Guide</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/introduction/index.html b/docs/en/cowboy/2.4/guide/introduction/index.html
index 9a7787b2..fca8521b 100644
--- a/docs/en/cowboy/2.4/guide/introduction/index.html
+++ b/docs/en/cowboy/2.4/guide/introduction/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Introduction</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/listeners/index.html b/docs/en/cowboy/2.4/guide/listeners/index.html
index a1b4beb6..26ba5dd1 100644
--- a/docs/en/cowboy/2.4/guide/listeners/index.html
+++ b/docs/en/cowboy/2.4/guide/listeners/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Listeners</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/loop_handlers/index.html b/docs/en/cowboy/2.4/guide/loop_handlers/index.html
index 4f5db262..93e0cd57 100644
--- a/docs/en/cowboy/2.4/guide/loop_handlers/index.html
+++ b/docs/en/cowboy/2.4/guide/loop_handlers/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Loop handlers</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/middlewares/index.html b/docs/en/cowboy/2.4/guide/middlewares/index.html
index f8bdb4e4..0cc6f222 100644
--- a/docs/en/cowboy/2.4/guide/middlewares/index.html
+++ b/docs/en/cowboy/2.4/guide/middlewares/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Middlewares</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/migrating_from_1.0/index.html b/docs/en/cowboy/2.4/guide/migrating_from_1.0/index.html
index 3edeaced..175b0a8d 100644
--- a/docs/en/cowboy/2.4/guide/migrating_from_1.0/index.html
+++ b/docs/en/cowboy/2.4/guide/migrating_from_1.0/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Migrating from Cowboy 1.0 to 2.0</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/migrating_from_2.0/index.html b/docs/en/cowboy/2.4/guide/migrating_from_2.0/index.html
index d76f56b2..6895b9c7 100644
--- a/docs/en/cowboy/2.4/guide/migrating_from_2.0/index.html
+++ b/docs/en/cowboy/2.4/guide/migrating_from_2.0/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Migrating from Cowboy 2.0 to 2.1</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/migrating_from_2.1/index.html b/docs/en/cowboy/2.4/guide/migrating_from_2.1/index.html
index f741625b..616bba65 100644
--- a/docs/en/cowboy/2.4/guide/migrating_from_2.1/index.html
+++ b/docs/en/cowboy/2.4/guide/migrating_from_2.1/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Migrating from Cowboy 2.1 to 2.2</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/migrating_from_2.2/index.html b/docs/en/cowboy/2.4/guide/migrating_from_2.2/index.html
index 39892fd6..16954cb2 100644
--- a/docs/en/cowboy/2.4/guide/migrating_from_2.2/index.html
+++ b/docs/en/cowboy/2.4/guide/migrating_from_2.2/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Migrating from Cowboy 2.2 to 2.3</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/migrating_from_2.3/index.html b/docs/en/cowboy/2.4/guide/migrating_from_2.3/index.html
index efa8cbb1..91222ae7 100644
--- a/docs/en/cowboy/2.4/guide/migrating_from_2.3/index.html
+++ b/docs/en/cowboy/2.4/guide/migrating_from_2.3/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Migrating from Cowboy 2.3 to 2.4</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/modern_web/index.html b/docs/en/cowboy/2.4/guide/modern_web/index.html
index 67b2fca6..0fadaa78 100644
--- a/docs/en/cowboy/2.4/guide/modern_web/index.html
+++ b/docs/en/cowboy/2.4/guide/modern_web/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: The modern Web</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/multipart/index.html b/docs/en/cowboy/2.4/guide/multipart/index.html
index 63160cc0..ab20332f 100644
--- a/docs/en/cowboy/2.4/guide/multipart/index.html
+++ b/docs/en/cowboy/2.4/guide/multipart/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Multipart requests</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/req/index.html b/docs/en/cowboy/2.4/guide/req/index.html
index ed5b7040..74ed66ef 100644
--- a/docs/en/cowboy/2.4/guide/req/index.html
+++ b/docs/en/cowboy/2.4/guide/req/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: The Req object</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/req_body/index.html b/docs/en/cowboy/2.4/guide/req_body/index.html
index a0bbafeb..60c8246d 100644
--- a/docs/en/cowboy/2.4/guide/req_body/index.html
+++ b/docs/en/cowboy/2.4/guide/req_body/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Reading the request body</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/resource_design/index.html b/docs/en/cowboy/2.4/guide/resource_design/index.html
index 949ad935..fba3ce86 100644
--- a/docs/en/cowboy/2.4/guide/resource_design/index.html
+++ b/docs/en/cowboy/2.4/guide/resource_design/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Designing a resource handler</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/resp/index.html b/docs/en/cowboy/2.4/guide/resp/index.html
index 190e43b0..7cec971a 100644
--- a/docs/en/cowboy/2.4/guide/resp/index.html
+++ b/docs/en/cowboy/2.4/guide/resp/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Sending a response</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/rest_flowcharts/index.html b/docs/en/cowboy/2.4/guide/rest_flowcharts/index.html
index 6eaee7fe..4d31265b 100644
--- a/docs/en/cowboy/2.4/guide/rest_flowcharts/index.html
+++ b/docs/en/cowboy/2.4/guide/rest_flowcharts/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: REST flowcharts</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/rest_handlers/index.html b/docs/en/cowboy/2.4/guide/rest_handlers/index.html
index f054d390..e07000ba 100644
--- a/docs/en/cowboy/2.4/guide/rest_handlers/index.html
+++ b/docs/en/cowboy/2.4/guide/rest_handlers/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: REST handlers</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/rest_principles/index.html b/docs/en/cowboy/2.4/guide/rest_principles/index.html
index 62c0991a..a11b43aa 100644
--- a/docs/en/cowboy/2.4/guide/rest_principles/index.html
+++ b/docs/en/cowboy/2.4/guide/rest_principles/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: REST principles</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/routing/index.html b/docs/en/cowboy/2.4/guide/routing/index.html
index 0c0bd369..0cb1f0c2 100644
--- a/docs/en/cowboy/2.4/guide/routing/index.html
+++ b/docs/en/cowboy/2.4/guide/routing/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Routing</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/specs/index.html b/docs/en/cowboy/2.4/guide/specs/index.html
index 65157fdd..748a1b22 100644
--- a/docs/en/cowboy/2.4/guide/specs/index.html
+++ b/docs/en/cowboy/2.4/guide/specs/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: HTTP and other specifications</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/static_files/index.html b/docs/en/cowboy/2.4/guide/static_files/index.html
index 7f83e814..498f70d2 100644
--- a/docs/en/cowboy/2.4/guide/static_files/index.html
+++ b/docs/en/cowboy/2.4/guide/static_files/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Static files</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/streams/index.html b/docs/en/cowboy/2.4/guide/streams/index.html
index 25ed96fc..881a25ab 100644
--- a/docs/en/cowboy/2.4/guide/streams/index.html
+++ b/docs/en/cowboy/2.4/guide/streams/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Streams</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/ws_handlers/index.html b/docs/en/cowboy/2.4/guide/ws_handlers/index.html
index 1f538d1f..906928aa 100644
--- a/docs/en/cowboy/2.4/guide/ws_handlers/index.html
+++ b/docs/en/cowboy/2.4/guide/ws_handlers/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: Websocket handlers</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
diff --git a/docs/en/cowboy/2.4/guide/ws_protocol/index.html b/docs/en/cowboy/2.4/guide/ws_protocol/index.html
index 3cca89ec..227a0190 100644
--- a/docs/en/cowboy/2.4/guide/ws_protocol/index.html
+++ b/docs/en/cowboy/2.4/guide/ws_protocol/index.html
@@ -10,7 +10,7 @@
     <title>Nine Nines: The Websocket protocol</title>
 
     <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
-    <link href="/css/99s.css?r=3" rel="stylesheet">
+    <link href="/css/99s.css?r=4" rel="stylesheet">
 
     <link rel="shortcut icon" href="/img/ico/favicon.ico">
     <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">