.preloader {
    position: fixed;
    margin: 0 auto;
    width: 100%;
    height: 100vh;
    padding: 0px;
    margin: 0px;
    display: flex;
    flex-flow: row nowrap;
    justify-content: center;
    align-items: center;
    background: #f7f7f7;
}

.preloader {
    top: 0px;
    z-index: 99999;
    background: #fff;
}

    .preloader .cssload-speeding-wheel {
        position: absolute;
        top: calc(50% - 3.5px);
        left: calc(50% - 3.5px);
    }

.box_section {
    display: flex;
    flex-flow: row nowrap;
    justify-content: center;
    align-items: center;
    position: relative;
    background: white;
    border-radius: 20px;
    animation: 1s ease-in-out alternate infinite shadows;
}

.site_logo {
    width: 100px;
}

.img_filter {
    /*   width: 120px;
    height: 120px;*/
    opacity: 0.45;
    position: absolute;
    -webkit-animation-duration: 0.9s;
    -webkit-animation-fill-mode: forwards;
    -webkit-animation-iteration-count: infinite;
    -webkit-animation-name: placeHolderShimmer;
    -webkit-animation-timing-function: linear;
    background: #f6f7f9;
    background-image: linear-gradient(to right, #f6f7f9 0%, #e9ebee 20%, #f6f7f9 40%, #f6f7f9 100%);
    background-repeat: no-repeat;
}

@keyframes placeHolderShimmer {
    0% {
        background-position: -468px 0;
    }

    100% {
        background-position: 468px 0;
    }
}

@keyframes shadows {
    0% {
        box-shadow: none
    }

    100% {
        box-shadow: 9px 16px 8px rgb(227, 227, 227);
    }
}