.loader{
    position:fixed;
    top:0;
    left:0;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #e7e4e4;
    transition: opacity 0.95s, visibility 0.95s;
}

.loader-hidden {
    opacity: 0;
    visibility: hidden;
}

.loader::after{
    content: "";
    width:75px;
    height: 75px;
    border:5px solid #a8a8a8;
    border-top-color: #c40808;
    border-radius: 50%;
    animation: loading 0.95s ease infinite;
}


@keyframes loading {
    from{
        transform:rotate(0turn);   
    }
    to{
        transform:rotate(1turn);
    }
}