How quilljs inserts a custom dom structure

such as the title
I want to insert a custom element structure in the editor.

clipboard.png

how to implement.

Html5 javascript Rich-text-Editor quill
Apr.16,2021

resolved, add custom blots to register in Quill

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b32607-2b65f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b32607-2b65f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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