| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
| <html> |
| <head> |
| <style> |
| body { margin: 0px; } |
| .outer { |
| margin: -100px; |
| width: 400px; |
| height: 500px; |
| background-color: yellow; |
| } |
| .outer:hover { |
| background-color: red; |
| } |
| .inner { |
| visibility: hidden; |
| width: 100%; |
| height: 50%; |
| background-color: cyan; |
| } |
| </style> |
| </head> |
| |
| <body> |
| <div class="outer" |
| onmouseover="firstChild.style.visibility='visible'" |
| onmouseout="firstChild.style.visibility='hidden'"><div class="inner"></div></div> |
| </body> |
| </html> |
