How to implement large, medium and small fonts in app embedded pages?

at present, the page is laid out in rem, how to implement large, medium and small fonts?

Front-end css less html
Mar.24,2021

adjusting font size for iOS, itself only changes the css property of body, so it can be controlled by overriding the style.

body {

-webkit-text-size-adjust: 100% !important;

}

Resources

css3 can be measured as a percentage.
just set it up.

Inner fonts use em to adjust the outermost font size than body

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
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MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3921f-34537.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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