.spinner-inline{width:48px;height:48px;border:4px solid rgba(0,0,0,.1);border-top-color:#1976d2;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.show-child-on-hover{.toggle-child{visibility:hidden;display:inline-block}&:hover{.toggle-child{visibility:visible}}}