html  {
    direction:rtl;
}
body {
    background:url('../image/bg.png');
    background-attachment:fixed;
    background-size:cover;
}
#ForPost,.hidden {
    display: none
}

.star{
   position: absolute;
   background: white;
   border-radius: 50px;
   animation: move;
   animation-iteration-count: infinite;
   animation-timing-function: linear;
}
​
.type-1{
   width: 1px;
   height: 1px;
}
.type-2{
   width: 2px;
   height: 2px;
}
.type-3{
   width: 3px;
   height: 3px;
}
​
@keyframes move {
   0%{ transform: translateY(0); }
   100%{ transform: translateY(-1000px); }
}