html {
    /* position: relative;  */
    overflow-x:hidden;
    overflow-y:hidden; 
    /* width: 100%; */
   height: 100%; 
   background:#333333;
   color:silver;
   stroke: silver;

}
body {
   font-family:"Tahoma","San-Serif" , "Microsoft Yahei UI Light";
   font-size: 100%;
   margin: 0px 0px 0px 0px;
}
.clickable {
   cursor: pointer;
}

.offtag {
   color: goldenrod;
}