html,
body {
    margin: 0;
    min-height: 100%;
}

#loader {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    z-index: 99999;
}

#loaderInner img {
    width: 80px;
    height: 80px;
}





.main_block {
    opacity: 1;
    transition: opacity 0.3s ease;
}

body:not(.loaded) .main_block {
    visibility: hidden;
    opacity: 0;
}

body.loaded #loader {
    display: none;
}

body:not(.loaded) img:not(#loaderInner img) {
    visibility: hidden;
    opacity: 0;
}