::-webkit-scrollbar {
    width: 20px;
}
 
::-webkit-scrollbar-track {

    background:none;

}
 
::-webkit-scrollbar-thumb {

    background-color: #1a1b20;
    border: 6px solid transparent;
    background-clip: content-box;

}

/*
#portrait-mode{
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  z-index:100;
  background:#fff;
  display:none;
}*/