#vid_container{
   z-index: -1;
}

#up_btn{
    position: fixed; bottom: 1%; right: 1%;
    display: none;
}

.div_img{
    overflow: hidden;
}

.img:hover{
    transform: scale(1.1);
}
.img{
    transition: 1.3s;
}

body{
    overflow-x: hidden;
}
a{
    text-decoration: none;
    color: black;
}