.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #dfdfdf;
    opacity: 1;
    pointer-events: none;
    z-index: 99;
    -webkit-transition: opacity .5s ease;
            transition: opacity .5s ease;
}
.loading.hide {
    opacity: 0;
}
.loading::after { /* Blue Bar */
    position: fixed;
    content: '';
    bottom: 10%;
    left: 50%;
    width: 0;
    height: 4px;
    background-color: #66add6;
    animation: fadeout-loading 4s ease infinite;
}
.loading::before { /* Purple Bar */
    position: fixed;
    content: '';
    bottom: 10%;
    left: 50%;
    width: 0;
    height: 4px;
    background-color: #7b66d6;
    animation: fadeout-loading2 4s ease infinite;
}
@keyframes fadeout-loading {
    0% { z-index: 101; left: 50%; width: 0; }
    50% { z-index: 101; left: 10%; width: 80%; }
    51% { z-index: 100; }
    100% { z-index: 100; left: 10%; width: 80%; }
}
@keyframes fadeout-loading2 {
    0% { z-index: 100; left: 10%; width: 80%; }
    49% { z-index: 100;}
    50% { z-index: 101; left: 50%; width: 0; }
    100% { z-index: 101; left: 10%; width: 80%; }
}