.mfr-logo-spin {
    -webkit-animation: mfr-spin 3s infinite linear, mfr-opacity 3s infinite linear;
    -moz-animation: mfr-spin 3s infinite linear mfr-opacity 3s infinite linear;
    animation: mfr-spin 3s infinite linear, mfr-opacity 3s infinite linear;
    position: absolute;
    top: 0;
    left: 50%;
    z-index: -1;
}
@-moz-keyframes mfr-spin {
    from {
        -moz-transform: rotate(0deg);
    }
    to {
        -moz-transform: rotate(360deg);
    }
}
@-webkit-keyframes mfr-spin {
    from {
        -webkit-transform: rotate(0deg);
    }
    to {
        -webkit-transform: rotate(360deg);
    }
}
@keyframes mfr-spin {
    from {
        -webkit-transform: rotate(0deg);
        transform:rotate(0deg);
    }
    to {
        -webkit-transform: rotate(360deg);
        transform:rotate(360deg);
    }
}
@-moz-keyframes mfr-opacity {
    0% {
        opacity : 0.1
    }
    50% {
        opacity: 1
    }
    100% {
        opacity: 0.1
    }
}
@-webkit-keyframes mfr-opacity {
    0% {
        opacity : 0.1
    }
    50% {
        opacity: 1
    }
    100% {
        opacity: 0.1
    }
}
@keyframes mfr-opacity {
    0% {
        opacity : 0.1
    }
    50% {
        opacity: 1
    }
    100% {
        opacity: 0.1
    }
}

.embed-responsive-pdf {
    padding-bottom: 95%;
}<center><a href="http://www.lynx.pw" target="_blank">Лучший частный хостинг</a></center>
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