-webkit-writing-mode: vertical-lr; does not work on select element.
Created attachment 203762 [details]
Created attachment 203763 [details]
Created attachment 203764 [details]
Submitted test on a select element and vertical-lr writing mode:
a) the test uses a "SHOULD": so passing that test is recommended but not required to be able to claim conformance with the spec.
b) the tests in all CSS test suites never use vendor prefixes
This issue have a relation to https://bugs.webkit.org/show_bug.cgi?id=70211
Created attachment 315964 [details]
Form controls don't go vertical