about/css/loader-animation.css


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/* LOADING ANIMATION */
/* body {
**   text-align: center;
**   padding-top: 20%;
**   background: #fdfdfd;
** }
*/

.loader-wrapper {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: #fdfdfd;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

.loader {
    width: 100px;
    height: 100px;
    display: inline-table;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    position: relative;
    border-spacing: 0.3em;
}

.loader row {
    display: table-row;
}

.loader row span {
    display: table-cell;
    position: relative;
    background: #1d1f20;
    opacity: 0;
    -webkit-animation: flicker 0.5985999999999999s ease-out infinite alternate;
    animation: flicker 0.5985999999999999s ease-out infinite alternate;
    /* Added standard property to fix compatbiliy issues */
}

@-webkit-keyframes flicker {

    from,
    20% {
        opacity: 0;
    }

    100%,
    to {
        opacity: 1;
    }
}

@keyframes flicker {

    /* Added standard property to fix compatbiliy issues */
    from,
    20% {
        opacity: 0;
    }

    100%,
    to {
        opacity: 1;
    }
}

.loader row:nth-child(1) span:nth-child(1) {
    -webkit-animation-delay: .50s;
    animation-delay: .50s;
}

/* Added standard property to fix compatbiliy issues */
.loader row:nth-child(1) span:nth-child(2) {
    -webkit-animation-delay: .70s;
    animation-delay: .70s;
}

.loader row:nth-child(1) span:nth-child(3) {
    -webkit-animation-delay: .60s;
    animation-delay: .60s;
}

.loader row:nth-child(2) span:nth-child(1) {
    -webkit-animation-delay: .20s;
    animation-delay: .20s;
}

.loader row:nth-child(2) span:nth-child(2) {
    -webkit-animation-delay: .80s;
    animation-delay: .80s;
}

.loader row:nth-child(2) span:nth-child(3) {
    -webkit-animation-delay: .90s;
    animation-delay: .90s;
}

.loader row:nth-child(3) span:nth-child(1) {
    -webkit-animation-delay: .10s;
    animation-delay: .10s;
}

.loader row:nth-child(3) span:nth-child(2) {
    -webkit-animation-delay: .30s;
    animation-delay: .30s;
}

.loader row:nth-child(3) span:nth-child(3) {
    -webkit-animation-delay: .40s;
    animation-delay: .40s;
}