| <!-- | |
| @UIA-WIN-ALLOW:LocalizedControlType=* | |
| @WIN-ALLOW:localized_extended_role=* | |
| --> | |
| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <form onsubmit="return false" oninput="o.value = (a.valueAsNumber || 0) + (b.valueAsNumber || 0)"> | |
| <input name=a type=number step=any> + | |
| <input name=b type=number step=any> = | |
| <output name=o for="a b"></output> | |
| </form> | |
| </body> | |
| </html> |