| <!DOCTYPE html> |
| <meta name="viewport" content="width=device-width,initial-scale=1"> |
| <link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#unreachable" /> |
| <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1905247"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| .content { |
| overflow-y: scroll; |
| scroll-snap-type: y mandatory; |
| white-space: nowrap; |
| max-height: 800px; |
| border: 2px solid black; |
| /* padding-right so you can see the scrollbar: */ |
| padding-right: 10px; |
| writing-mode: vertical-lr; |
| } |
| .item { |
| height: 500px; |
| width: 200px; |
| border: 3px solid orange; |
| box-sizing: border-box; |
| scroll-snap-align: start; |
| display: inline-block; |
| writing-mode: horitontal-tb; |
| } |
| </style> |
| |
| <div id="scroller" class="content"> |
| <!-- There's intentionally no whitespace between these tags, so that they're |
| laid out flush with each other with no space character between them. --> |
| <div class="item" style="height: 610px; background:teal"></div |
| ><div class="item" style="height: 200px; background:pink"></div> |
| </div> |
| |
| <script> |
| test(() => { |
| scroller.scrollTop = 6; |
| assert_equals(scroller.scrollTop, 10); |
| }, "Snaps to the positions defined by the element as much as possible"); |
| </script> |
