On the mobile phone page, there is an input box with the fixed positioned at the bottom. How to keep the input box fixed above the keyboard when the keyboard appears?

in vue"s mobile phone page, the input box is fixed at the bottom of the page through fixed. When the keyboard appears, it is topped by the keyboard, but if it slips down, the input box slides again. How to keep the input box motionless when sliding, and stay above the keyboard all the time

Mar.14,2021
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-64f5-1e43a22-663ee.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e43a22-663ee.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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