<style type="text/css">
            *{margin:0px; padding:0px; }*

            #NavToptgc{
                    Z-index:999;
                    width:100px;
                    height:100px;
                    margin-top:50px;
                    position:fixed;    right:150px;bottom:100px;        /*¹Ì¶¨Î»ÖÃ,ÓÒ¸¡¶¯£¬¾àÉÏ150px  right:100px;top:280px; */
            }
            #NavToptgc #NavContgc{
                            Z-index:999;
                            width:100px;
                            height:100px;
                            /*background:url('../images/free2.png') repeat-y;*/
                            position:relative;
                            border:0px solid black;
            }



         </style>