.yyfile-image{
    width: 100%;
    height: 100%;
    position: fixed;
    left:0;
    z-index: 3;
    background: rgba(0,0,0,0.5);
    .sharefile{
         width: 100%;
         height: 100%;
    }
    .return{
        position: relative;
        left:10px;
        top:10px;
        width: 30px;
        height: 50px;
        img{
           width: 30px;
           height: 30px;
        }
    }
}
.slide-up{
    animation: slide_upfile 0.3s;
    top:0 !important;
}
.slide-down{
    animation: slide_downfile 0.3s;
    top:100% !important;
}
@keyframes slide_downfile
{
    0%   {top: 0;}
    100% {top: 100%;}
}
@keyframes slide_upfile
{
    0%   {top: 100%;}
    100% {top: 0;}
}