| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <p>The width of innerdiv should be 50% of the width of the outerdiv.</p> | |
| <div id="outer" style="height: 300px; width: 50vw; background-color: lightcyan;"> | |
| <div id="inner" style="width: 50%; height: 50%; background-color: lightseagreen;"></div> | |
| </div> | |
| </body> | |
| </html> |