| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <style> | |
| body { | |
| -webkit-animation-name: throb; | |
| -webkit-animation-iteration-count: infinite; | |
| -webkit-animation-duration: 2s; | |
| -webkit-animation-timing-function: ease-in-out; | |
| } | |
| @-webkit-keyframes throb { | |
| 0% { background-color: #fff; } | |
| 50% { background-color: #000; } | |
| 100% { background-color: #fff; } | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| </body> | |
| </html> |