css根据屏幕大小调用不同css

<link rel="stylesheet" href="{{ URL::asset('static/css/admin.css') }}" media="screen and (min-width: 1200px) and (max-device-width: 120000px)">
<link rel="stylesheet" href="{{ URL::asset('static/css/admin1.css') }}" media="screen and (max-width: 1200px)">