css - transform: translateY(-50%) --- Chrome "invalid property value" error, why? -

css - transform: translateY(-50%) --- Chrome "invalid property value" error, why? -

chrome giving me "invalid property value" transform: translatey(-50%). i've used necessary vendor prefixes. there no problems in other browsers.

any ideas?

update: in case it's helpful, here's context (using sass indented syntax):

.modal background: #fefefe border: $modal--util solid 1px border-radius: 2px left: 0 right: 0 margin-left: auto margin-right: auto z-index: 12 max-width: 380px overflow: hidden visibility: hidden position: fixed top: 50% transform: translatey(-50%)

uninstalled , re-installed chrome , problem's gone... think chrome wasn't auto-updating (i'm on linux).

css css3 google-chrome cross-browser css-transforms