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Detect mediaquery execution

by bitstarr

CSS

@media (min-width: 200px) {
    body:after {
        content: 'widescreen';
        display: none;
        }
    }

JavaScript

var size = window.getComputedStyle(document.body,':after').getPropertyValue('content');
if (size.indexOf('widescreen' === 1) )  {
    // go nuts
    console.log(size);
}