The safe-area-inset attribute takes effect on iphone without bangs. Why?

Shouldn"t the

safe-area-inset attribute be valuable only for phones with bangs? Today"s test found that the style of iphone6 iphone6s was also affected by this. Why? 

  padding-top: constant(safe-area-inset-top);
  padding-top: env(safe-area-inset-top);
Css3 css html5 ios front-end
Mar.27,2022

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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-64f5-1b37b19-4ed1b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b37b19-4ed1b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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