popcorn-site/css/_os.scss

body.mac .dl-win,
body.mac .dl-linux,
body.win .dl-mac,
body.win .dl-lin,
body.lin .dl-mac,
body.lin .dl-win,
body.nope .dl-win,
body.nope .dl-mac {
	display: none !important;
}

body .dl-win, body .dl-lin {
	display: none !important;
}

body.win .dl-win {
	display: inline-block !important;
}

body.lin .dl-lin {
	display: inline-block !important;
}