How to replace the dots of the video progress bar with pictures or icon?

when the Dragon Boat Festival arrived, I suddenly found that the dots of bilibili"s progress bar had been replaced with zongzi pictures. I was very curious about how to achieve it. I searched it, but I couldn"t find it. Xiaobai knelt down and begged everyone for advice

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Mar.20,2021

F12 take a look

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-64f5-1ead903-47f3e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1ead903-47f3e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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