.spinner-border{display:inline-block;vertical-align:text-bottom;width:2rem;height:2rem;border:.25em solid;border-right:.25em solid rgba(0,0,0,0);border-radius:50%;animation:spinner-border .75s linear infinite}.spinner-border-sm{width:1rem;height:1rem;border-width:.2em}@keyframes spinner-border{to{transform:rotate(1turn)}}