The style of ng-class in angular

Click the button in

clipboard.png
clipboard.png
angular to restore the actual effect to figure 1, but now you need to click again in the blank space before you can restore it. The style has been changed and may not be re-rendered.

Feb.28,2021
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-64f5-1b30e67-2b59b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b30e67-2b59b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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