Title: Potential Variable Validation Problem
Last modified: August 27, 2025

---

# Potential Variable Validation Problem

 *  Resolved [igormacedo](https://wordpress.org/support/users/igormacedo/)
 * (@igormacedo)
 * [7 months, 1 week ago](https://wordpress.org/support/topic/potential-variable-validation-problem/)
 * This code is no longer working. The syntax is correct. I tried with the unit 
   of measurement and with pure zero, but the message remains.
 * > [View post on imgur.com](https://imgur.com/a/nhgPQFG)
 *     ```wp-block-code
       :root {--theme-content-vertical-spacing: 0em !important;}
       ```
   

Viewing 1 replies (of 1 total)

 *  Plugin Author [Łukasz Nowicki](https://wordpress.org/support/users/lukasznowicki/)
 * (@lukasznowicki)
 * [7 months, 1 week ago](https://wordpress.org/support/topic/potential-variable-validation-problem/#post-18615787)
 * Hello Igor!
   I don’t normally add CSS tips because I’m not an expert, but I think
   I see a problem in your code.In CSS custom properties (variables) you cannot 
   use `!important` inside the definition.Correct way is::root {–theme-content-vertical-
   spacing: 0em;}Then, when you use the variable, you can add !important:.my-class{
   margin-top: var(–theme-content-vertical-spacing) !important;}Something like that
 * Kind regards
 * Lukasz
    -  This reply was modified 7 months, 1 week ago by [Łukasz Nowicki](https://wordpress.org/support/users/lukasznowicki/).

Viewing 1 replies (of 1 total)

The topic ‘Potential Variable Validation Problem’ is closed to new replies.

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## Tags

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

 * 1 reply
 * 2 participants
 * Last reply from: [Łukasz Nowicki](https://wordpress.org/support/users/lukasznowicki/)
 * Last activity: [7 months, 1 week ago](https://wordpress.org/support/topic/potential-variable-validation-problem/#post-18615787)
 * Status: resolved