| <html> |
| <head> |
| <style> |
| :root { --one: 10px; --two: 20px; } |
| </style> |
| <body> |
| <script> |
| document.styleSheets[0].cssRules[0].style.setProperty("--one", "5px") |
| document.styleSheets[0].cssRules[0].style.removeProperty("--two") |
| document.styleSheets[0].cssRules[0].style.setProperty("--two", "30px") |
| document.styleSheets[0].cssRules[0].style.setProperty("--one", "50px") |
| document.write(document.styleSheets[0].cssRules[0].style.getPropertyValue("--one") + " " + document.styleSheets[0].cssRules[0].style.getPropertyValue("--two")) |
| </script> |
| </body> |
| </html. |
