.loader{
    position: fixed;
    z-index: 99;
    top:0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    display:flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}
.loader img{
    width: 100px;
}
.loader.hidden{
    animation: fadeOut 1s;
    animation-fill-mode: forwards;
}
@keyframes fadeOut {
    100% {
        opacity: 0;
        visibility: hidden;
    }
}