dl: Definition list
Definition list
dt:Definition title
Define the title
dd:Definition Description
Definition description
dt is the title of the information, and dd is a simple summary description of this information.
That is to say, a dt corresponds to a dd to describe it
The content in dd can be arbitrary, pictures, text, or even video or audio
Multiple similar dts and dds form a dl
Then dl dt dd is suitable for performance such as: news lists with summary, product lists with thumbnails and other descriptions...