.spinner {
    position: fixed;
    left: 50%;
    top: 28%;
    height: 60px;
    width: 60px;
    margin: 0px auto;
    -webkit-animation: rotation .6s infinite linear;
    -moz-animation: rotation .6s infinite linear;
    -o-animation: rotation .6s infinite linear;
    animation: rotation .6s infinite linear;
    border-left: 6px solid rgba(199, 199, 199, 0.15);
    border-right: 6px solid rgba(199, 199, 199, 0.15);
    border-bottom: 6px solid rgba(199, 199, 199, 0.15);
    border-top: 6px solid rgba(109, 117, 125, 0.8);
    border-radius: 100%;
    z-index: 99999;
}

@-webkit-keyframes rotation {
    from {-webkit-transform: rotate(0deg);}
    to {-webkit-transform: rotate(359deg);}
}
@-moz-keyframes rotation {
    from {-moz-transform: rotate(0deg);}
    to {-moz-transform: rotate(359deg);}
}
@-o-keyframes rotation {
    from {-o-transform: rotate(0deg);}
    to {-o-transform: rotate(359deg);}
}
@keyframes rotation {
    from {transform: rotate(0deg);}
    to {transform: rotate(359deg);}
}