| <html> | |
| <script> | |
| window.onload = function () { | |
| setInterval(blink, 0); | |
| } | |
| var a = 0; | |
| function blink() { | |
| document.getElementById("blink").style.backgroundColor = a ? "blue" : "green"; | |
| a = !a; | |
| } | |
| </script> | |
| <style> | |
| #blink { | |
| width: 200px; height: 200px; | |
| display: inline-block; | |
| } | |
| </style> | |
| <body> | |
| <div id="blink"></div> | |
| </body> | |
| </html> |