How to achieve this dynamic effect?

this animation seems to be an animation with a height of 0 to 100%. How can it be realized?

Mar.02,2021

this type of question is answered by and
with the clip-path attribute.


cover it with a white block. Moving the white block from top to bottom can achieve the effect

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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-64f5-1e9b36e-4760f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e9b36e-4760f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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