How do I replace the entire div content?

an evaluation page, I want to click the submit button and replace the entire page content with a check mark animation, and then add a back button, how to replace all the content in the entire div? Ask for the answer of the Great God

Mar.13,2021

write a page (an animation of a check mark) display:none;,
Click the submit button, and the evaluation page display:none;, page (an animation of a check mark) display:block;,
Click the back button, and the evaluation page display:block;, page (an animation of a check mark) display:none;,

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-64f5-7ad2b6-245b5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7ad2b6-245b5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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