.loading {
    font-family: Titillium Web, sans-serif;
    font-weight: 600;
    -webkit-font-smoothing: antialiased;
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: 30px;
}

.loading:after {
    content: '';
    display: block;
    width: 50px;
    height: 50px;
    background-color: #343434;
    animation-name: spin;
    animation-duration: 2000ms;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
    position: absolute;
    left: 40px;
    top: -80px;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}