1.width()/height() Zepto.js: 由盒模型(box-sizing)决定 jQuery: 忽略盒模型,始终返回内容区域的宽/高(不包含 padding.border) jQuery 官方的说明: Note that .width() will always return the content width, regardless of the value of the CSS box-sizingproperty. As of jQuery 1.8, this may re