:root{--sk-size:40px;--sk-color:#333}body.theme--dark{--sk-color:rgb(169, 169, 179)}.sk-wrapper{display:flex;justify-content:center;padding:24px 0}.sk-fold{width:var(--sk-size);height:var(--sk-size);position:relative;transform:rotateZ(45deg)}.sk-fold-cube{float:left;width:50%;height:50%;position:relative;transform:scale(1.1)}.sk-fold-cube:before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background-color:var(--sk-color);animation:sk-fold 2.4s infinite linear both;transform-origin:100% 100%}.sk-fold-cube:nth-child(2){transform:scale(1.1)rotateZ(90deg)}.sk-fold-cube:nth-child(4){transform:scale(1.1)rotateZ(180deg)}.sk-fold-cube:nth-child(3){transform:scale(1.1)rotateZ(270deg)}.sk-fold-cube:nth-child(2):before{animation-delay:.3s}.sk-fold-cube:nth-child(4):before{animation-delay:.6s}.sk-fold-cube:nth-child(3):before{animation-delay:.9s}@keyframes sk-fold{0%,10%{transform:perspective(140px)rotateX(-180deg);opacity:0}25%,75%{transform:perspective(140px)rotateX(0);opacity:1}90%,100%{transform:perspective(140px)rotateY(180deg);opacity:0}}