| <!doctype html> | |
| <html> | |
| <head> | |
| <title>mo invalid attributes</title> | |
| <meta charset="utf-8"/> | |
| </head> | |
| <body> | |
| _<math><mi>x</mi><mo>+</mo><mi>x</mi></math>_<br/> | |
| _<math><mi>x</mi><mo>+</mo><mi>x</mi></math>_<br/> | |
| _<math><mo>|</mo><mspace height="2em" depth="2em"/></math>_<br/> | |
| _<math><mo>|</mo><mspace height="2em" depth="2em"/></math>_<br/> | |
| _<math><mo>X</mo></math>_<br/> | |
| _<math><mo>X</mo></math>_<br/> | |
| _<math><mo>X</mo></math>_<br/> | |
| </body> | |
| </html> |