diff --git a/assets/less/bootstrap/bootstrap.less b/assets/less/bootstrap/bootstrap.less
index 1c04778..f0aa08f 100644
--- a/assets/less/bootstrap/bootstrap.less
+++ b/assets/less/bootstrap/bootstrap.less
@@ -1,6 +1,6 @@
 /*!
- * Bootstrap v3.3.6 (http://getbootstrap.com)
- * Copyright 2011-2015 Twitter, Inc.
+ * Bootstrap v3.3.7 (http://getbootstrap.com)
+ * Copyright 2011-2016 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 
diff --git a/assets/less/bootstrap/button-groups.less b/assets/less/bootstrap/button-groups.less
index 293245a..16db0c6 100644
--- a/assets/less/bootstrap/button-groups.less
+++ b/assets/less/bootstrap/button-groups.less
@@ -59,7 +59,7 @@
     .border-right-radius(0);
   }
 }
-// Need .dropdown-toggle since :last-child doesn't apply given a .dropdown-menu immediately after it
+// Need .dropdown-toggle since :last-child doesn't apply, given that a .dropdown-menu is used immediately after it
 .btn-group > .btn:last-child:not(:first-child),
 .btn-group > .dropdown-toggle:not(:first-child) {
   .border-left-radius(0);
diff --git a/assets/less/bootstrap/forms.less b/assets/less/bootstrap/forms.less
index e8b071a..9377d38 100644
--- a/assets/less/bootstrap/forms.less
+++ b/assets/less/bootstrap/forms.less
@@ -181,7 +181,7 @@ input[type="search"] {
 // set a pixel line-height that matches the given height of the input, but only
 // for Safari. See https://bugs.webkit.org/show_bug.cgi?id=139848
 //
-// Note that as of 8.3, iOS doesn't support `datetime` or `week`.
+// Note that as of 9.3, iOS doesn't support `week`.
 
 @media screen and (-webkit-min-device-pixel-ratio: 0) {
   input[type="date"],
diff --git a/assets/less/bootstrap/input-groups.less b/assets/less/bootstrap/input-groups.less
index 5f73eec..d0763db 100644
--- a/assets/less/bootstrap/input-groups.less
+++ b/assets/less/bootstrap/input-groups.less
@@ -29,7 +29,7 @@
 
     width: 100%;
     margin-bottom: 0;
-    
+
     &:focus {
       z-index: 3;
     }
diff --git a/assets/less/bootstrap/mixins/tab-focus.less b/assets/less/bootstrap/mixins/tab-focus.less
index 1f1f05a..d12d236 100644
--- a/assets/less/bootstrap/mixins/tab-focus.less
+++ b/assets/less/bootstrap/mixins/tab-focus.less
@@ -1,9 +1,9 @@
 // WebKit-style focus
 
 .tab-focus() {
-  // Default
-  outline: thin dotted;
-  // WebKit
+  // WebKit-specific. Other browsers will keep their default outline style.
+  // (Initially tried to also force default via `outline: initial`,
+  // but that seems to erroneously remove the outline in Firefox altogether.)
   outline: 5px auto -webkit-focus-ring-color;
   outline-offset: -2px;
 }
diff --git a/assets/less/bootstrap/panels.less b/assets/less/bootstrap/panels.less
index 425eb5e..65aa3a8 100644
--- a/assets/less/bootstrap/panels.less
+++ b/assets/less/bootstrap/panels.less
@@ -214,7 +214,7 @@
 }
 
 
-// Collapsable panels (aka, accordion)
+// Collapsible panels (aka, accordion)
 //
 // Wrap a series of panels in `.panel-group` to turn them into an accordion with
 // the help of our collapse JavaScript plugin.
diff --git a/assets/less/bootstrap/scaffolding.less b/assets/less/bootstrap/scaffolding.less
index 1929bfc..64a29c6 100644
--- a/assets/less/bootstrap/scaffolding.less
+++ b/assets/less/bootstrap/scaffolding.less
@@ -120,7 +120,7 @@ hr {
 
 // Only display content to screen readers
 //
-// See: http://a11yproject.com/posts/how-to-hide-content/
+// See: http://a11yproject.com/posts/how-to-hide-content
 
 .sr-only {
   position: absolute;
diff --git a/assets/less/bootstrap/theme.less b/assets/less/bootstrap/theme.less
index 8f51d91..fb61744 100644
--- a/assets/less/bootstrap/theme.less
+++ b/assets/less/bootstrap/theme.less
@@ -1,6 +1,6 @@
 /*!
- * Bootstrap v3.3.6 (http://getbootstrap.com)
- * Copyright 2011-2015 Twitter, Inc.
+ * Bootstrap v3.3.7 (http://getbootstrap.com)
+ * Copyright 2011-2016 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 
diff --git a/assets/less/bootstrap/variables.less b/assets/less/bootstrap/variables.less
index b057ef5..03b5498 100644
--- a/assets/less/bootstrap/variables.less
+++ b/assets/less/bootstrap/variables.less
@@ -111,7 +111,7 @@
 //** Global background color for active items (e.g., navs or dropdowns).
 @component-active-bg:       @brand-primary;
 
-//** Width of the `border` for generating carets that indicator dropdowns.
+//** Width of the `border` for generating carets that indicate dropdowns.
 @caret-width-base:          4px;
 //** Carets increase slightly in size for larger components.
 @caret-width-large:         5px;