在IE8与opera10-中，数字一旦大于1342177.27,都将自动被变成1342177.27这个数，其他见下面的注释部分。
var zooms = [
["256px","256px"] ,
["512px","512px"] ,
["1024px","1024px"] ,
["2048px","2048px"] ,
["4096px","4096px"] ,
["8192px","8192px"] ,
["16384px","16384px"] ,
["32768px","32768px"] ,
["65536px","65536px"] ,
["131072px","131072px"] ,
["262144px","262144px"] ,
["524288px","524288px"] ,
["1048576px","1048576px"] ,
["2097152px","2097152px"] ,
["4194304px","4194304px"] ,
["8388608px","8388608px"] ,
["16777216px","16777216px"] ,
["33554432px","33554432px"] ,//firefox3.6.12渲染错误，变成长方形
["67108864px","67108864px"] ,
["134217728px","134217728px"] ];//safari5.0.3, chrome10.0.6, opera10.62显示不能，失去背景色
function setZoom(el,zoom) {
var width = zoom[0], height = zoom[1];
el.style.width = width;
el.style.height = height;
el.innerHTML= "设置值为 "+ width + " x " + height
+"
实际值为 "+ el.style.width + " x " + el.style.height;
};
function test(el){
var zoom = zooms.shift();
setZoom(el,zoom);
if(zooms.length){
setTimeout(function(){
test(el)
},2000);
}
}
window.onload = function(){
var el = document.getElementById("test");
test(el);
}
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