The scroll bar in the chrome browser can't scroll down without scrolling the bottom, but the firefox browser doesn't have a problem. What's going on?

clipboard.png
there is still a lot of distance below the scroll bar, but you can"t drop down.


Please provide the source code, otherwise how to guess

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-64f5-1b30acf-2b097.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b30acf-2b097.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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