11 files changed, 12 insertions, 13 deletions
diff --git a/js/tests/index.html b/js/tests/index.html
index ad5b6437a..2383fce6e 100644
--- a/js/tests/index.html
+++ b/js/tests/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/js/tests/visual/alert.html b/js/tests/visual/alert.html
index bb2d9cb48..9baee6f50 100644
--- a/js/tests/visual/alert.html
+++ b/js/tests/visual/alert.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/js/tests/visual/button.html b/js/tests/visual/button.html
index 33de14d8b..3de316ac8 100644
--- a/js/tests/visual/button.html
+++ b/js/tests/visual/button.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/js/tests/visual/carousel.html b/js/tests/visual/carousel.html
index 5bdd6160b..f81dc951e 100644
--- a/js/tests/visual/carousel.html
+++ b/js/tests/visual/carousel.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/js/tests/visual/collapse.html b/js/tests/visual/collapse.html
index 0c19def73..300592095 100644
--- a/js/tests/visual/collapse.html
+++ b/js/tests/visual/collapse.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/js/tests/visual/dropdown.html b/js/tests/visual/dropdown.html
index bb0fc6e41..11b89b0f2 100644
--- a/js/tests/visual/dropdown.html
+++ b/js/tests/visual/dropdown.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/js/tests/visual/modal.html b/js/tests/visual/modal.html
index fcc96035b..3b4cd4d3e 100644
--- a/js/tests/visual/modal.html
+++ b/js/tests/visual/modal.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/js/tests/visual/popover.html b/js/tests/visual/popover.html
index d979d967a..ec2fb4934 100644
--- a/js/tests/visual/popover.html
+++ b/js/tests/visual/popover.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
@@ -22,8 +22,7 @@
         Popover on right
       </button>
 
-      <button type="button" class="btn btn-secondary" data-container="body" data-toggle="popover" data-placement="bottom" data-content="Vivamus
-      sagittis lacus vel augue laoreet rutrum faucibus.">
+      <button type="button" class="btn btn-secondary" data-container="body" data-toggle="popover" data-placement="bottom" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus.">
         Popover on bottom
       </button>
 
diff --git a/js/tests/visual/scrollspy.html b/js/tests/visual/scrollspy.html
index cfa31ceea..b57185187 100644
--- a/js/tests/visual/scrollspy.html
+++ b/js/tests/visual/scrollspy.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/js/tests/visual/tab.html b/js/tests/visual/tab.html
index defb577cf..a6034722e 100644
--- a/js/tests/visual/tab.html
+++ b/js/tests/visual/tab.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/js/tests/visual/tooltip.html b/js/tests/visual/tooltip.html
index 2d3767830..cd57ef4ff 100644
--- a/js/tests/visual/tooltip.html
+++ b/js/tests/visual/tooltip.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">