body
{
   height: 100%; 
   overflow: hidden;
   user-select: none;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}
#loginDiv{
   overflow: hidden;
   user-select: none;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}