yundewu-website/page_cooperation/jssrc/index.js

$(function(){
    $.fn.extend({
        // 合作机构
        cooperativePosition:function(){
            var spanWidth = $(this).find('span').height();
            this.hover(function(){
                $(this).find('span').animate({
                    bottom:'0'
                },100);
            },function(){
                $(this).find('span').animate({
                    bottom:'-40px'
                },100);
            })
        }
    });

    function pageFun(){
        $('.cooperative-content-box div ul li').cooperativePosition();
    }
    pageFun();
})