How to display the preloaded animation before the request to load the data, to prevent the page from being blank and to have a bad experience?

1. I am using the bootrap framework
2. I want to pre-load the animation before clicking the menu, and then display the data
3. Is there any column to share

?
Bootstrap html5 jquery
Mar.18,2021

loading hide > Click the button to let loading display (display:block or switch class) while requesting data > hide loading in callback function after data loading

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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-64f5-1e55345-4d6ad.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e55345-4d6ad.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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