System(s) and/or method(s) (“tools”) are described that present content in a user interface tailored to trait(s) of the content. The tools can analyze content to determine its traits, classify the content based on its traits, and present the content in a user interface tailored to the classification. The tools can also organize content items into groups based on a common trait and enable a user to select content items through their group. Responsive to the user's selection of a group, the tools can present content, render enclosures, and alter traits of the content items in the group.