해상도 및 화면 방향에 따라 CSS 로딩 하는 방법

<link href="low_portrait.css" rel="stylesheet" type="text/css"

media="screen and (orientation: portrait) and (max-width:479px)">

<link href="low_landscape.css" rel="stylesheet" type="text/css"

media="screen and (orientation: landscape)">

<link href="high_portrait.css" rel="stylesheet" type="text/css"

media="screen and (orientation: portrait) and (min-width:480px)">