css - Why does this selector not work -

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given following markup

<div class="fixed">     <div class="clmn2">     </div>     <div class="clmn2">     </div> </div>

and information given on mdn

by interpretation selector should work.

*:not(.fixed) [class*="clmn"]

unfortunately not, does.

div:not(.fixed) [class*="clmn"]

any ideas why?

*update *

if check linked fiddle column in rows not marked class fixed should floated.

*:not(.fixed) foo matches

a foo element descendant of element not member of fixed class

this different to:

a foo element not descendant of element member of fixed class

if had:

<a class="fixed">   <b>     <foo></foo>   </b> </a>

then foo element descendant of b element not member of fixed class. (it also descendant of a element is member of class, doesn't matter because *:not(.fixed) happily match b element instead.)


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