| <style> | |
| span { | |
| font-weight: bold; | |
| color: yellow; | |
| border: 5px solid red; | |
| display: none; | |
| } | |
| .all { | |
| all: unset; | |
| } | |
| .unset { | |
| font-weight: unset; | |
| color: unset; | |
| border: unset; | |
| display: unset; | |
| } | |
| </style> | |
| <body> | |
| <span class="all">all</span><br> | |
| <div style="color: green; font-weight: normal;"> | |
| <span class="unset">unset</span> | |
| </span> | |
| </body> |