測試代碼
http://jsbin.com/dipijeqi/11
效果:
chrome:
window.devicePixelRatio : 2 (準(zhǔn)確) screen.deviceXDPI / screen.logicalXDPI : NaN window.outerWidth / window.innerWidth : 2 document.documentElement.offsetHeight / window.innerHeight : 0.020618556701030927 (有相關(guān)性) window.top.outerWidth / window.top.innerWidth : 2
ff:
window.devicePixelRatio : 1.5 (準(zhǔn)確) screen.deviceXDPI / screen.logicalXDPI : NaN window.outerWidth / window.innerWidth : 1.0114583333333333 document.documentElement.offsetHeight / window.innerHeight : 0.023391812865497075 (有相關(guān)性) window.top.outerWidth / window.top.innerWidth : 1.0114583333333333
ie 8:
window.devicePixelRatio : undefined screen.deviceXDPI / screen.logicalXDPI : 1.5416666666666667 (大致準(zhǔn)確) window.outerWidth / window.innerWidth : NaN document.documentElement.offsetHeight / window.innerHeight : NaN window.top.outerWidth / window.top.innerWidth : NaN
ie11:
window.devicePixelRatio : 1.5 (準(zhǔn)確) screen.deviceXDPI / screen.logicalXDPI : 1.5window.outerWidth / window.innerWidth : 1.0084033613445377document.documentElement.offsetHeight / window.innerHeight : 0.02203856749311295 (有相關(guān)性)window.top.outerWidth / window.top.innerWidth : 1.0084033613445377
ie10:
window.devicePixelRatio : undefined screen.deviceXDPI / screen.logicalXDPI : 1.5 (準(zhǔn)確) window.outerWidth / window.innerWidth : 1.0084033613445377 document.documentElement.offsetHeight / window.innerHeight : 1 window.top.outerWidth / window.top.innerWidth : 1.0084033613445377
ie9:
window.devicePixelRatio : undefined screen.deviceXDPI / screen.logicalXDPI : 1.5 (準(zhǔn)確) window.outerWidth / window.innerWidth : 1.0084033613445377 document.documentElement.offsetHeight / window.innerHeight : 1 window.top.outerWidth / window.top.innerWidth : 1.0084033613445377
360 6.3(完全沒反應(yīng)):
window.devicePixelRatio : undefined screen.deviceXDPI / screen.logicalXDPI : 1 window.outerWidth / window.innerWidth : NaN document.documentElement.offsetHeight / window.innerHeight : NaN window.top.outerWidth / window.top.innerWidth : NaN
360極速瀏覽器:
window.devicePixelRatio : 1 screen.deviceXDPI / screen.logicalXDPI : NaN window.outerWidth / window.innerWidth : 1.5 document.documentElement.offsetHeight / window.innerHeight : 0.015267175572519083 window.top.outerWidth / window.top.innerWidth : 1.5(準(zhǔn)確)
搜狗高速瀏覽器 (完全沒反應(yīng)):
window.devicePixelRatio : undefined screen.deviceXDPI / screen.logicalXDPI : 1 window.outerWidth / window.innerWidth : NaN document.documentElement.offsetHeight / window.innerHeight : NaN window.top.outerWidth / window.top.innerWidth : NaN
淘寶瀏覽器:
window.devicePixelRatio : 1 screen.deviceXDPI / screen.logicalXDPI : NaN window.outerWidth / window.innerWidth : 2.0710059171597632 (大致準(zhǔn)確) document.documentElement.offsetHeight / window.innerHeight : 0.022988505747126436 window.top.outerWidth / window.top.innerWidth : 2.0710059171597632
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