<!DOCTYPE html> <html> <head> <title>margin-trim: flex-column-block-multiline</title> <link rel="author" href="mailto:sammy.gill@apple.com"> <link rel="help" href="https://drafts.csswg.org/css-box-4/#margin-trim-flex"> <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html"> <meta name="assert" content="block-start should be trimmed for items at the start of the flex line and block-end should be trimmed for items at the end of the flex line"> <style> flexbox { display: flex; width: min-content; height: 100px; flex-wrap: wrap; flex-direction: column; margin-trim: block; } item { display: block; background-color: green; width: 50px; height: 50px; } item:nth-child(odd) { margin-block-start: 25px; } item:nth-child(even) { margin-block-end: 25px; } </style> </head> <body> <p>Test passes if there is a filled green square.</p> <flexbox> <item></item> <item></item> <item></item> <item></item> </flexbox> </body> </html>