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  1. <?php
  2.  
  3. $css = <<<CSS
  4. .btn{
  5. 	height: 40rem;
  6. 	border-radius: 20rem;	
  7. 	font-size: 18rem;
  8. 	font-weight: 500;
  9. 	text-decoration: none;
  10. 	padding: 0 25rem;
  11. 	}
  12. CSS;
  13.  
  14. $css = preg_replace_callback(
  15. 	'/(\d+)rem/m',
  16. 	function ($matches) {
  17. 		return $matches[1] / 10 . 'rem';
  18. 	},
  19. 	$css
  20. );
  21. echo $css;
Success #stdin #stdout 0.02s 24152KB
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.btn{
	height: 4rem;
	border-radius: 2rem;	
	font-size: 1.8rem;
	font-weight: 500;
	text-decoration: none;
	padding: 0 2.5rem;
	}
https://ideone.com/2MRbkG
language:
PHP (php 7.3.5)
created:
5 years ago
visibility:
secret

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