.bg {
    background-image: url(/modules/MobileApp/en/img/b5.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    position: fixed;
    z-index: -2;
    bottom: 0;
    top: 0;
    right: 0;
    left: 0;
}
html {
    height: 100%;
  }
  body {
    min-height: 100%;
  }

.blur {
    background: rgb(255 255 255 / 65%);
    backdrop-filter: blur(10px); 
    height: 100vh;
    width: 100%;
    position: fixed;
    z-index: -1;
}
.box_demo a{
    position: relative;
    display: block;
    -webkit-transition: all .25s ease;
    transition: all .25s ease;
    overflow: hidden;
    height: 351px;
}
.box_demo a:hover .box_hover {
    display: flex;
    -webkit-transition: all .25s ease;
    transition: all .25s ease;
}
@media (max-width: 700px) {
    .box_demo a {
   height: auto;
    }
}

.box_hover {
   
    position: absolute;
    -webkit-transition: all .25s ease;
    transition: all .25s ease;
    display: none;
    top: 0;
    bottom: 0;
    right: 0;
    left: 0;
    height: 100%;
    margin: auto;
    align-items: center;
    justify-content: center;
    background: rgb(150 150 150 / 78%);
}