.load-bar {
    position: absolute;
    width: 100%;
    height: 6px;
    margin-top: 40px;
    z-index: 1000;
}
/* Transparent Overlay */
.load-bar:after {
    content: '';
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #000000;
    background-color: rgba(0, 0, 0, 0.25);
    z-index: 9999;
}

.bar {
    content: "";
    display: inline;
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    text-align: center;
}
.bar:nth-child(1) {
    background-color: #A9DDFF;
    animation: loading 3s linear infinite;
}
.bar:nth-child(2) {
    background-color: #78CAFF;
    animation: loading 3s linear 1s infinite;
}
.bar:nth-child(3) {
    background-color: #0FA1FF;
    animation: loading 3s linear 2s infinite;
}
@keyframes loading {
    from {
        left: 50%;
        width: 0;
        z-index: 100;
    }
    33.3333% {
        left: 0;
        width: 100%;
        z-index: 50;
    }
    to {
        left: 0;
        width: 100%;
    }
}