| <!DOCTYPE html> | |
| <style> | |
| body { | |
| container-type: size; | |
| width: 200px; | |
| } | |
| div { | |
| width: 0px; | |
| height: 0px; | |
| } | |
| @container (min-width: 100px) { | |
| .rule1 { | |
| width: 10px; | |
| } | |
| } | |
| </style> | |
| <script> | |
| const sheet = new CSSStyleSheet(); | |
| sheet.insertRule('@container (min-width: 50px) { .rule2 { height: 10px; } }', 0); | |
| document.adoptedStyleSheets = [sheet]; | |
| </script> | |
| <div class="rule1 rule2"></div> |