#loader,
#loader:before {
    position: fixed;
    top: 0;
    left: 0
}

#loader:before,
#loader:not(:required):after {
    content: '';
    display: block
}

#loader {
    z-index: 9999;
    height: 2em;
    width: 2em;
    overflow: show;
    margin: auto;
    bottom: 0;
    right: 0
}

#loader:before {
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .3)
}

#loader:not(:required) {
    font: 0/0 a;
    color: transparent;
    text-shadow: none;
    background-color: transparent;
    border: 0
}

#loader:not(:required):after {
    font-size: 10px;
    width: 1em;
    height: 1em;
    margin-top: -.5em;
    -webkit-animation: spinner 1.5s infinite linear;
    -moz-animation: spinner 1.5s infinite linear;
    -ms-animation: spinner 1.5s infinite linear;
    -o-animation: spinner 1.5s infinite linear;
    animation: spinner 1.5s infinite linear;
    border-radius: .5em;
    -webkit-box-shadow: rgba(0, 0, 0, .75) 1.5em 0 0 0, rgba(0, 0, 0, .75) 1.1em 1.1em 0 0, rgba(0, 0, 0, .75) 0 1.5em 0 0, rgba(0, 0, 0, .75) -1.1em 1.1em 0 0, rgba(0, 0, 0, .5) -1.5em 0 0 0, rgba(0, 0, 0, .5) -1.1em -1.1em 0 0, rgba(0, 0, 0, .75) 0 -1.5em 0 0, rgba(0, 0, 0, .75) 1.1em -1.1em 0 0;
    box-shadow: rgba(0, 0, 0, .75) 1.5em 0 0 0, rgba(0, 0, 0, .75) 1.1em 1.1em 0 0, rgba(0, 0, 0, .75) 0 1.5em 0 0, rgba(0, 0, 0, .75) -1.1em 1.1em 0 0, rgba(0, 0, 0, .75) -1.5em 0 0 0, rgba(0, 0, 0, .75) -1.1em -1.1em 0 0, rgba(0, 0, 0, .75) 0 -1.5em 0 0, rgba(0, 0, 0, .75) 1.1em -1.1em 0 0
}

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