| <!DOCTYPE html> | |
| <!-- | |
| | Opacity should affect the appearance of all children of a container node. | |
| | https://www.w3.org/TR/css3-color/#transparency | |
| --> | |
| <html> | |
| <head> | |
| <style> | |
| body { | |
| opacity: 0.5; | |
| } | |
| div { | |
| width: 100px; | |
| height: 50px; | |
| } | |
| .red { | |
| background-color: rgb(255, 0, 0); | |
| } | |
| .green { | |
| background-color: rgb(0, 255, 0); | |
| } | |
| .blue { | |
| background-color: rgb(0, 0, 255); | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="red"></div> | |
| <div class="green"></div> | |
| <div class="blue"></div> | |
| </body> | |
| </html> |