Several months ago, we made some changes to the search results of hotels.com, and among these was the creation of a “pinned header”. As you scroll down through the list of results, a portion of the page header stays with you. Here’s the UI before scrolling. And here it is with the header pinning (linking to screenshots for archival purposes). The rationale for this change was that the business wanted us to shout as loudly as possible about our lo…