.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--color-border-hi);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 800ms linear infinite;
    vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }