Things to try

• The page opens on All bosses: every boss's loot on one page. Click a boss on the left for its tip, abilities and kill count.
• Pick another dungeon in the list on the left: Blackmaw Hold, Blackrock Depths (Keys), Onyxia's Lair.
• Switch tabs above the bosses: Quests, Map (click a pin), Keys.
• Click the star on a loot row, then open Favourites.
• Type in the search box: "smite", "cape", "black", "dawn".
• Loot Finder: pick Two-Hand and Up to Your Level. Reputation and PvP are the tabs above the list.

Only those four dungeons and Argent Dawn are filled in. Buttons that would do something in the game say what, in a note at the bottom of the screen. Player state and some numbers are sample values.