.sk-chase {
    width: 10px;
    height: 10px;
    position: relative;
    animation: sk-chase 2.5s infinite linear both;
}

.sk-chase-dot {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    animation: sk-chase-dot 2s infinite ease-in-out both;
}

.sk-chase-dot:before {
    content: "";
    display: block;
    width: 25%;
    height: 25%;
    background-color: #fff;
    border-radius: 100%;
    animation: sk-chase-dot-before 2s infinite ease-in-out both;
}

.sk-chase-dot:nth-child(1) {
    animation-delay: -1.1s;
}
.sk-chase-dot:nth-child(2) {
    animation-delay: -1s;
}
.sk-chase-dot:nth-child(3) {
    animation-delay: -0.9s;
}
.sk-chase-dot:nth-child(4) {
    animation-delay: -0.8s;
}
.sk-chase-dot:nth-child(5) {
    animation-delay: -0.7s;
}
.sk-chase-dot:nth-child(6) {
    animation-delay: -0.6s;
}
.sk-chase-dot:nth-child(1):before {
    animation-delay: -1.1s;
}
.sk-chase-dot:nth-child(2):before {
    animation-delay: -1s;
}
.sk-chase-dot:nth-child(3):before {
    animation-delay: -0.9s;
}
.sk-chase-dot:nth-child(4):before {
    animation-delay: -0.8s;
}
.sk-chase-dot:nth-child(5):before {
    animation-delay: -0.7s;
}
.sk-chase-dot:nth-child(6):before {
    animation-delay: -0.6s;
}

@keyframes sk-chase {
    100% {
        transform: rotate(360deg);
    }
}

@keyframes sk-chase-dot {
    80%,
    100% {
        transform: rotate(360deg);
    }
}

@keyframes sk-chase-dot-before {
    50% {
        transform: scale(0.4);
    }
    100%,
    0% {
        transform: scale(1);
    }
}

#cover-spin {
    position: fixed;
    width: 100%;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.7);
    z-index: 9999;
}

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

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

#cover-spin::after {
    content: "";
    display: block;
    position: absolute;
    left: 48%;
    top: 40%;
    width: 40px;
    height: 40px;
    border-style: solid;
    border-color: black;
    border-top-color: transparent;
    border-width: 4px;
    border-radius: 50%;
    -webkit-animation: spin 0.8s linear infinite;
    animation: spin 0.8s linear infinite;
}

#cover-spin {
    position: fixed;
    width: 100%;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.7);
    z-index: 9999;
}

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

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

#cover-spin::after {
    content: "";
    display: block;
    position: absolute;
    left: 48%;
    top: 40%;
    width: 40px;
    height: 40px;
    border-style: solid;
    border-color: black;
    border-top-color: transparent;
    border-width: 4px;
    border-radius: 50%;
    -webkit-animation: spin 0.8s linear infinite;
    animation: spin 0.8s linear infinite;
}