How does Gitbook Editor modify fonts?

how Gitbook Editor modifies fonts

I find the default font uncomfortable and paranoid.

Thank you. Novice, English is not good, BD is not enough.

Feb.08,2022
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-64f5-1b30e2c-2bd32.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b30e2c-2bd32.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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