Title: CSS Minify syntax bug
Last modified: August 25, 2026

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# CSS Minify syntax bug

 *  [eibbor21](https://wordpress.org/support/users/eibbor21/)
 * (@eibbor21)
 * [1 week, 3 days ago](https://wordpress.org/support/topic/css-minify-syntax-bug/)
 * The CSS nth of class selector syntax (e.g “(1 of .class)”) becomes “(1of .class)”(
   with no space between the nth selector and “of”) with CSS minification turned,
   which is invalid and causes the rule to be skipped.

Viewing 1 replies (of 1 total)

 *  Plugin Support [litetim](https://wordpress.org/support/users/litetim/)
 * (@litetim)
 * [4 days, 11 hours ago](https://wordpress.org/support/topic/css-minify-syntax-bug/#post-19007688)
 * [@eibbor21](https://wordpress.org/support/users/eibbor21/) we will look into,
   but I cannot give you a fix timeline

Viewing 1 replies (of 1 total)

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## Tags

 * [css](https://wordpress.org/support/topic-tag/css/)

 * 1 reply
 * 2 participants
 * Last reply from: [litetim](https://wordpress.org/support/users/litetim/)
 * Last activity: [4 days, 11 hours ago](https://wordpress.org/support/topic/css-minify-syntax-bug/#post-19007688)
 * Status: not resolved