Merge branch 'master' into pr/11299

Conflicts:
	dist/css/bootstrap.min.css
	docs-assets/js/raw-files.js

1 files changed, 18 insertions, 14 deletions

diff --git a/less/thumbnails.less b/less/thumbnails.less
index a09aa9b83..43e7d1d26 100644
--- a/less/thumbnails.less
+++ b/less/thumbnails.less
@@ -5,27 +5,31 @@
 
 // Mixin and adjust the regular image class
 .thumbnail {
-  .img-thumbnail();
-  display: block; // Override the inline-block from `.img-thumbnail`
+  display: block;
+  padding: @thumbnail-padding;
   margin-bottom: @line-height-computed;
+  line-height: @line-height-base;
+  background-color: @thumbnail-bg;
+  border: 1px solid @thumbnail-border;
+  border-radius: @thumbnail-border-radius;
+  .transition(all .2s ease-in-out);
 
   > img {
     .img-responsive();
     margin-left: auto;
     margin-right: auto;
   }
-}
-
 
-// Add a hover state for linked versions only
-a.thumbnail:hover,
-a.thumbnail:focus,
-a.thumbnail.active {
-  border-color: @link-color;
-}
+  // Add a hover state for linked versions only
+  a&:hover,
+  a&:focus,
+  a&.active {
+    border-color: @link-color;
+  }
 
-// Image captions
-.thumbnail .caption {
-  padding: @thumbnail-caption-padding;
-  color: @thumbnail-caption-color;
+  // Image captions
+  .caption {
+    padding: @thumbnail-caption-padding;
+    color: @thumbnail-caption-color;
+  }
 }