@-webkit-keyframes rotating /* Safari and Chrome */ {
    from {
        -webkit-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
    }

    to {
        -webkit-transform: rotate(360deg);
        -o-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@keyframes rotating {
    from {
        -ms-transform: rotate(0deg);
        -moz-transform: rotate(0deg);
        -webkit-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
    }

    to {
        -ms-transform: rotate(360deg);
        -moz-transform: rotate(360deg);
        -webkit-transform: rotate(360deg);
        -o-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

.box-loading {
    position: relative;
}

.box-loading::before {
    content: '';
    position: absolute;
    background-color: rgba(255,255,255,0.6);
    top: 0px;
    bottom: 0px;
    left: 0px;
    right: 0px;
    z-index: 10;
}

.box-loading::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 50px;
    top: calc(50% - 25px);
    left: calc(50% - 25px);
    border: solid 3px #0d6efd;
    border-bottom-color: transparent !important;
    border-radius: 100px;
    z-index: 12;
    -webkit-animation: rotating 1s linear infinite;
    -moz-animation: rotating 1s linear infinite;
    -ms-animation: rotating 1s linear infinite;
    -o-animation: rotating 1s linear infinite;
    animation: rotating 1s linear infinite;
}
.box-loading-sm::after{
    width: 30px;
    height: 30px;
    top: calc(50% - 15px);
    left: calc(50% - 15px);
}
.box-loading-xs::after{
    width: 16px;
    height: 16px;
    top: calc(50% - 8px);
    left: calc(50% - 8px);
}

.box-loading-white::after {
    border-color: #FFF;
}