document.body.scrollTop)
return {
left: obj.left + window.pageXOffset,
top: obj.top + window.pageYOffset,
width: Math.round(obj.width),
height: Math.round(obj.height)
}
},
css: function(property, value) {
//获取指定的样式
if (arguments.length < 2 && typeof property == 'string') return this[0] && (this[0].style[camelize(property)]
关键词：zepto是啥