docs(css): correct styling of <min-ver> in IE

Author: Ryan A. Johnson

docs/docs.less

@@ -120,6 +120,7 @@ min-version {
   background-color: @magenta-500;
   border-radius: 1em;
   color: @gray-0;
+  display: inline-block;
   font-size: 0.75rem;
   font-weight: 400;
   line-height: 1;