/*! { "name": "CSS vh unit", "property": "cssvhunit", "caniuse": "viewport-units", "tags": ["css"], "builderAliases": ["css_vhunit"], "notes": [{ "name": "Related Modernizr Issue", "href": "https://github.com/Modernizr/Modernizr/issues/572" }, { "name": "Similar JSFiddle", "href": "https://jsfiddle.net/FWeinb/etnYC/" }] } !*/ define(['Modernizr', 'testStyles', 'computedStyle'], function(Modernizr, testStyles, computedStyle) { testStyles('#modernizr { height: 50vh; max-height: 10px; }', function(elem) { var compStyle = parseInt(computedStyle(elem, null, 'height'), 10); Modernizr.addTest('cssvhunit', compStyle === 10); }); });