/* Классы classicbk (zv_rz1/zv_rzs/zv_rz_sel/zv_fld) уже в buttons.css. */
.zv-sk-line { height: 11px; margin-bottom: 8px; background: linear-gradient(100deg,#cfcfcf 20%,#e2e2e2 40%,#cfcfcf 60%); background-size: 200% 100%; animation: zv-pulse 1.3s linear infinite; }
@keyframes zv-pulse { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }