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vw.less
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// this snippet is valid LESS
// it uses vw units where available (http://caniuse.com/#search=vw)
// and falls back for predefined values for using media queries
// usage .vw(font-size, 5) -> set font-size to at least 5% of the viewport
// .vw(width, 20) -> set width to at least 20% of the viewport
 
 
.vw(@prop, @value) {
// this mixin is using a nasty hack due to less' inability
// to define properties as arguments
@media (min-width: 1200px) {
@pxvalue: @value*0.01*1200px;
ignore: ~"inherit;@{prop}:@{pxvalue}";
ignore: ~"inherit;@{prop}:@{value}vw";
}
@media (min-width: 979px) {
@pxvalue: @value*0.01*979px;
ignore: ~"inherit;@{prop}:@{pxvalue}";
ignore: ~"inherit;@{prop}:@{value}vw";
}
@media (min-width: 767px) {
@pxvalue: @value*0.01*767px;
ignore: ~"inherit;@{prop}:@{pxvalue}";
ignore: ~"inherit;@{prop}:@{value}vw";
}
@media (max-width: 767px) {
@pxvalue: @value*0.01*500px;
ignore: ~"inherit;@{prop}:@{pxvalue}";
ignore: ~"inherit;@{prop}:@{value}vw";
}
}

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