jQuery动态设置样式

    function changeWrapperHeight(){
        var height = document.documentElement.clientHeight-100;
        var css = {
            'margin-left': '2px',
            position: 'fixed',
            'overflow-y': 'auto',
            height: height 
        };
        $("#myWrapper").css(css);
    }

    window.onresize=function(){ 
        changeWrapperHeight();
    }
    $(function(){
        changeWrapperHeight();
    });