.checkbox_hidden{
    display: none;
}

#frame01 {
  cursor : pointer;
  position:absolute;
  left:auto;
  top:auto;
/*  transform:translate(0px,0px);*/
}

/*#frame02 {
  cursor : pointer;
  position:absolute;
  left:0px;
  top:0px;
  width: 650px;
  height: 577px;*/
  /*background-color:rgba(0,0,0,0);*/
  /*background-color:black;
}*/

/*#course1{
, #course2, #course3, #course4, #course5, #course6, #courseOFF,{
  user-select:none;
  z-index: 10000;
}*/