div#image-loader {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background-color: #344049;
    z-index: 9999;
    text-align: center;
}

div#image-loader img {
    max-width: 300px;
    width: auto;
    height: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

@media(min-width:768px) {
#image-loader {
display: none !important;}
}