| <!DOCTYPE HTML> | |
| <style> | |
| #container { | |
| display: flex; | |
| align-items: flex-start; | |
| align-content: center; | |
| width: 200px; | |
| height: 300px; | |
| background-color: red; | |
| } | |
| .item { | |
| background-color: green; | |
| border: solid thin blue; | |
| width: 100px; | |
| height: 300px; | |
| } | |
| </style> | |
| <p style="height: 20px">There should be no invalidations because align-content style change causes no visual change.</p> | |
| <div id="container"> | |
| <div class="item"></div> | |
| <div class="item"></div> | |
| </div> |