Ensure btn-outline colors remain the same in <a>

- specifically, if a href= is missing then ensure the styling persists
3 jobs for 4.0-beta2 in 2 minutes and 5 seconds (queued for 2 seconds)
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Status Job ID Name Coverage
  Build
passed #4093
build

00:01:22

 
  Deploy
passed #4094
pages

00:00:42

passed pages:deploy

00:00:00