Editable div setting contentEditable= "plaintext-only" cursor can appear anywhere

editable div settings contentEditable= "plaintext-only" cursor can appear anywhere, items as long as the cursor appears on the first line set to true copy paste will be rich text and editable div words limit of 500excess cannot be re-entered do not know how to solve the praying for a direction

Feb.28,2021

A big god won't answer me =. =

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-64f5-1be4dc0-39aec.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1be4dc0-39aec.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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