.loading {
    position: relative;
}

.loading::after {
    background-color: rgba( 255, 255, 255, .8);
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    z-index: 100 !important;
    display: flex;
    justify-content: center;
    align-items: center;
}

.loading:not(:required):before {
    content: '';
    display: block;
    position: absolute;
    font-size: 10px;
    width: 1em;
    height: 1em;
    top: 50%;
    z-index: 10000!important;
    left: 50%;
    margin-top: -0.5em;
    -webkit-animation: spinner 1500ms infinite linear;
    -moz-animation: spinner 1500ms infinite linear;
    -ms-animation: spinner 1500ms infinite linear;
    -o-animation: spinner 1500ms infinite linear;
    animation: spinner 1500ms infinite linear;
    border-radius: 0.5em;
    -webkit-box-shadow: #2a7af3 1.5em 0 0 0, #2a7af3 1.1em 1.1em 0 0, #2a7af3 0 1.5em 0 0, #2a7af3 -1.1em 1.1em 0 0, rgba(0, 0, 0, 0.5) -1.5em 0 0 0, rgba(0, 0, 0, 0.5) -1.1em -1.1em 0 0, #2a7af3 0 -1.5em 0 0, #2a7af3 1.1em -1.1em 0 0;
    box-shadow: #2a7af3 1.5em 0 0 0, #2a7af3 1.1em 1.1em 0 0, #2a7af3 0 1.5em 0 0, #2a7af3 -1.1em 1.1em 0 0, #2a7af3 -1.5em 0 0 0, #2a7af3 -1.1em -1.1em 0 0, #2a7af3 0 -1.5em 0 0, #2a7af3 1.1em -1.1em 0 0;
}


/* Animation */

@-webkit-keyframes spinner {
    0% {
        -webkit-transform: rotate(0deg);
        -moz-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        -o-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@-moz-keyframes spinner {
    0% {
        -webkit-transform: rotate(0deg);
        -moz-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        -o-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@-o-keyframes spinner {
    0% {
        -webkit-transform: rotate(0deg);
        -moz-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        -o-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@keyframes spinner {
    0% {
        -webkit-transform: rotate(0deg);
        -moz-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        -o-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}