.loader {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 7.33333em;
    height: 7.33333em;
    margin-left: -3.66667em;
    margin-top: -3.66667em;
    z-index: 8;
}

.loader-block {
    position: absolute;
    top: 0;
    left: 0;
    display: inline-block;
    opacity: 0;
    width: 2em;
    height: 2em;
    background: #fdfdfd;
    -webkit-animation: show 0.88s step-end infinite alternate, pulse 0.88s linear infinite alternate;
    animation: show 0.88s step-end infinite alternate, pulse 0.88s linear infinite alternate;
}

    .loader-block:nth-child(1) {
        -moz-transform: translate(0, 0);
        -ms-transform: translate(0, 0);
        -webkit-transform: translate(0, 0);
        transform: translate(0, 0);
        -webkit-animation-delay: 0.065s;
        animation-delay: 0.065s;
    }

    .loader-block:nth-child(2) {
        -moz-transform: translate(2.66667em, 0);
        -ms-transform: translate(2.66667em, 0);
        -webkit-transform: translate(2.66667em, 0);
        transform: translate(2.66667em, 0);
        -webkit-animation-delay: 0.13s;
        animation-delay: 0.13s;
    }

    .loader-block:nth-child(3) {
        -moz-transform: translate(5.33333em, 0);
        -ms-transform: translate(5.33333em, 0);
        -webkit-transform: translate(5.33333em, 0);
        transform: translate(5.33333em, 0);
        -webkit-animation-delay: 0.195s;
        animation-delay: 0.195s;
    }

    .loader-block:nth-child(4) {
        -moz-transform: translate(0, 2.66667em);
        -ms-transform: translate(0, 2.66667em);
        -webkit-transform: translate(0, 2.66667em);
        transform: translate(0, 2.66667em);
        -webkit-animation-delay: 0.325s;
        animation-delay: 0.325s;
    }

    .loader-block:nth-child(5) {
        -moz-transform: translate(2.66667em, 2.66667em);
        -ms-transform: translate(2.66667em, 2.66667em);
        -webkit-transform: translate(2.66667em, 2.66667em);
        transform: translate(2.66667em, 2.66667em);
        -webkit-animation-delay: 0.13s;
        animation-delay: 0.13s;
    }

    .loader-block:nth-child(6) {
        -moz-transform: translate(5.33333em, 2.66667em);
        -ms-transform: translate(5.33333em, 2.66667em);
        -webkit-transform: translate(5.33333em, 2.66667em);
        transform: translate(5.33333em, 2.66667em);
        -webkit-animation-delay: 0.455s;
        animation-delay: 0.455s;
    }

    .loader-block:nth-child(7) {
        -moz-transform: translate(0, 5.33333em);
        -ms-transform: translate(0, 5.33333em);
        -webkit-transform: translate(0, 5.33333em);
        transform: translate(0, 5.33333em);
        -webkit-animation-delay: 0.39s;
        animation-delay: 0.39s;
    }

    .loader-block:nth-child(8) {
        -moz-transform: translate(2.66667em, 5.33333em);
        -ms-transform: translate(2.66667em, 5.33333em);
        -webkit-transform: translate(2.66667em, 5.33333em);
        transform: translate(2.66667em, 5.33333em);
        -webkit-animation-delay: 0.26s;
        animation-delay: 0.26s;
    }

    .loader-block:nth-child(9) {
        -moz-transform: translate(5.33333em, 5.33333em);
        -ms-transform: translate(5.33333em, 5.33333em);
        -webkit-transform: translate(5.33333em, 5.33333em);
        transform: translate(5.33333em, 5.33333em);
    }

@-webkit-keyframes pulse {
    from, 40% {
        background: #fdfdfd;
    }

    to {
        background: #dadada;
    }
}

@-webkit-keyframes show {
    from, 40% {
        opacity: 0;
    }

    41%, to {
        opacity: 1;
    }
}

@keyframes pulse {
    from, 40% {
        background: #fdfdfd;
    }

    to {
        background: #dadada;
    }
}

@keyframes show {
    from, 40% {
        opacity: 0;
    }

    41%, to {
        opacity: 1;
    }
}

div#lockscreen {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(27, 27, 27, 0.55);
    z-index: 99999; 
}