/*rotate 360*/
@-webkit-keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}
@-moz-keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}
@-o-keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes warning {
    0% {
        border-bottom-color: rgba(0, 255, 255, 0.6);
    }
    25% {
        border-bottom-color: rgba(255, 0, 0, 0.6);
    }
    80% {
        border-bottom-color: rgba(0, 255, 255, 0.6)
    }
    100% {
        border-bottom-color: rgba(0, 255, 255, 0.6)
    }
}