Meta tag 자주 쓰는 것들

브라우저 호환

<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" />

http://stackoverflow.com/questions/14611264/x-ua-compatible-content-ie-9-ie-8-ie-7-ie-edge

Open Graph 태그 (소셜 서비스에 링크시 썸네일 표시 등)

<meta property="og:type" content="website">
<meta property="og:title" content="타이틀">
<meta property="og:description" content="설명">
<meta property="og:site_name" content="사이트 이름">
<meta property="og:url" content="표시할링크주소">
<meta property="og:image" content="표시할링크이미지">

og 이미지 사이즈 : 1200px * 630px or 1200px * 1200px

모바일

<meta name="viewport" content="user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no, width=device-width, height=device-height" />
<meta name="apple-mobile-web-app-capable" content="yes" />