Card message display form is very flexible, support the use of br tag or the blank space to line feed processing, also support the use of div tags to use a different font color, the built-in 3 kinds of text color: grey (gray), highlighting (highlight), the default black (normal), as a div tag's class attribute, specific usage, please refer to the above example, Above is card to send the document { "Touser" : "@ all," "Msgtype" : "textcard," "Agentid" : 1, "Textcard" : { "Title" : "award notice 1