Title: Additional CSS doesn’t accept “1fr”?
Last modified: December 24, 2018

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# Additional CSS doesn’t accept “1fr”?

 *  [richbhanover](https://wordpress.org/support/users/richbhanover/)
 * (@richbhanover)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/additional-css-doesnt-accept-1fr/)
 * Using WP 4.9.9. I want to add Additional CSS using the Customizer. I enter:
 *     ```
       .wrapper {
       	display: grid;
       	grid-template-columns: 1fr 1fr;
       }
       ```
   
 * The Customizer gives the error message “There is 1 error which must be fixed 
   before you can save. Update anyway, even though it might break your site?” See
   this image: [https://pasteboard.co/HTeoK9E.png](https://pasteboard.co/HTeoK9E.png)
 * Any thoughts on fixing this? Thanks.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Joy](https://wordpress.org/support/users/joyously/)
 * (@joyously)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/additional-css-doesnt-accept-1fr/#post-11024084)
 * The code that checks the CSS is not totally up to date with the latest syntax.
   
   Just update anyway, knowing that perhaps some of your visitors will not have 
   the latest browsers either.
 *  Thread Starter [richbhanover](https://wordpress.org/support/users/richbhanover/)
 * (@richbhanover)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/additional-css-doesnt-accept-1fr/#post-11024489)
 * Ahah! That makes sense. And whatever CSS I publish will be sent to the browser,
   so it’ll work as I hope. Thanks!

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Additional CSS doesn’t accept “1fr”?’ is closed to new replies.

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [richbhanover](https://wordpress.org/support/users/richbhanover/)
 * Last activity: [7 years, 5 months ago](https://wordpress.org/support/topic/additional-css-doesnt-accept-1fr/#post-11024489)
 * Status: not resolved

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