Add klmn

docs/_sass/example.sass

@@ -51,6 +51,8 @@
 
 .highlight-full,
 #navbarJsExample
+  &:not(:last-child)
+    margin-bottom: 1.5rem
   .highlight pre
     max-height: none
 

docs/_sass/klmn.sass

@@ -0,0 +1,32 @@
+.bd-klmn
+  margin-bottom: 1.5rem
+
+.bd-klmn-gaps
+  align-items: center
+  display: flex
+  flex-wrap: wrap
+  justify-content: flex-start
+  margin-bottom: 1.25rem
+
+.bd-klmn-label
+  margin: 0.25rem auto 0.25rem 0
+
+.bd-klmn-gap
+  background-color: $background
+  border-radius: $radius
+  color: $red
+  font-family: $family-monospace
+  font-size: 0.75rem
+  margin: 0.25rem 0 0.25rem 0.5rem
+  padding: 0.375em 0.75em
+  text-align: center
+  vertical-align: middle !important
+  white-space: nowrap
+  &.bd-is-selected
+    background-color: $green
+    color: $white
+
+.bd-klmn-columns:last-child
+  .bd-notification
+    font-size: 0.75rem
+    white-space: nowrap