.loading-container {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background-color: rgb(225, 225, 225);
    z-index: 1;
    opacity: .7;
    color: #0066cc;
    margin: 0 auto;
    text-align: center;
}

.inner-container {
    margin: auto;
    font-size: 20px;
    font-weight: 500;
    top: 50%;
    transform: translateY(-50%);
    -webkit-transform: translateY(-50%);
    position: absolute;
    left: 0;
    right: 0;
}

#loading.hidden {
    visibility: hidden;
}

.loading-spinner {
    display: inline-block;
    position: relative;
    width: 80px;
    height: 80px;
}

.loading-spinner div {
    position: absolute;
    border: 4px solid #0066cc;
    opacity: 1;
    border-radius: 50%;
    animation: loading-spinner 1s cubic-bezier(0, 0.2, 0.8, 1) infinite;
}

.loading-spinner div:nth-child(2) {
    animation-delay: -0.5s;
}

@keyframes loading-spinner {
    0% {
        top: 36px;
        left: 36px;
        width: 0;
        height: 0;
        opacity: 0;
    }
    4.9% {
        top: 36px;
        left: 36px;
        width: 0;
        height: 0;
        opacity: 0;
    }
    5% {
        top: 36px;
        left: 36px;
        width: 0;
        height: 0;
        opacity: 1;
    }
    100% {
        top: 0px;
        left: 0px;
        width: 72px;
        height: 72px;
        opacity: 0;
    }
}