*{
   margin: 0;
   padding: 0; 
   box-sizing: border-box;
   background-color: rgb(123, 98, 153);
   text-align: center;
}
#msg{
   font-size: 50px;
   font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
   color: rgb(70, 170, 69);
}
 #box {
      width: 50px;
      height: 50px;
      background: white;
      position: absolute;
      cursor: pointer; 
    }