| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| .test { |
| width: 100px; |
| height: 25px; |
| background: red; |
| color: red; |
| } |
| #host1, #host2 { |
| color: green; |
| } |
| #host3 div, #host4 div { |
| width: 50%; |
| height: 100%; |
| background: green; |
| display: inline-block; |
| } |
| </style> |
| </head> |
| <body> |
| <p>Test passes if you see a single 100px by 100px green box below.</p> |
| <div id="host1" class="test"></div> |
| <div id="host2" class="test"></div> |
| <div id="host3" class="test"><div>text</div></div> |
| <div id="host4" class="test"><div>text</div></div> |
| <script> |
| |
| host1.attachShadow({mode: 'closed'}).innerHTML = `<style> |
| :host::before, :host::after { |
| background: green; |
| width: 50%; |
| height: 100%; |
| background: green; |
| display: inline-block; |
| content: "test"; |
| } |
| </style>`; |
| |
| host2.attachShadow({mode: 'closed'}).innerHTML = `<style> |
| :host(.green)::before, :host(.green)::after { |
| background: green; |
| width: 50%; |
| height: 100%; |
| background: green; |
| display: inline-block; |
| content: "test"; |
| } |
| </style>`; |
| |
| getComputedStyle(host2).backgroundColor; |
| host2.classList.add('green'); |
| |
| host3.attachShadow({mode: 'closed'}).innerHTML = `<style> |
| :host { |
| color: green !important; |
| } |
| :host::before { |
| background: green; |
| width: 50%; |
| height: 100%; |
| background: green; |
| display: inline-block; |
| content: "test"; |
| } |
| </style><slot></slot>`; |
| |
| host4.attachShadow({mode: 'closed'}).innerHTML = `<style> |
| :host(.green) { |
| color: green !important; |
| } |
| :host(.green)::after { |
| background: green; |
| width: 50%; |
| height: 100%; |
| background: green; |
| display: inline-block; |
| content: "test"; |
| } |
| </style><slot></slot>`; |
| |
| getComputedStyle(host4).backgroundColor; |
| host4.classList.add('green'); |
| |
| </script> |
| </body> |
| </html> |
