<meta name=」viewport」 content=」width=device-width, initial-scale=1, maximum-scale=1″>scala
width:device-width 爲設備的寬度。initial-scale:初始縮放比例。maximum-scale:容許用戶縮放到的最大比例。minimum-scale:容許用戶縮放到的最小比例。user-scalable:用戶是否能夠手動縮放it