使用jQuery检测容器溢出？

$.fn.hasOverflow = function() {
var $this = $(this);
var $children = $this.find(‘*’);
var len = $children.length;

    if (len) {        var maxWidth = 0;        var maxHeight = 0        $children.map(function(){ maxWidth = Math.max(maxWidth, $(this).outerWidth(true)); maxHeight = Math.max(maxHeight, $(this).outerHeight(true));        });        return maxWidth > $this.width() || maxHeight > $this.height();    }    return false;};

例：

var $content = $('#content').children().wrapAll('<div>');while($content.hasOverflow()){    var size = parseFloat($content.css('font-size'), 10);    size -= 1;    $content.css('font-size', size + 'px');}