web/src/components/custom/Landing.css
.spinner {
    width: 44px;
    height: 44px;
    animation: spinner-y0fdc1 2s infinite ease;
    transform-style: preserve-3d;
}

.spinner > div {
    background-color: rgba(0,77,255,0.2);
    height: 100%;
    position: absolute;
    width: 100%;
    border: 2px solid #004dff;
}

.spinner div:nth-of-type(1) {
    transform: translateZ(-22px) rotateY(180deg);
}

.spinner div:nth-of-type(2) {
    transform: rotateY(-270deg) translateX(50%);
    transform-origin: top right;
}

.spinner div:nth-of-type(3) {
    transform: rotateY(270deg) translateX(-50%);
    transform-origin: center left;
}

.spinner div:nth-of-type(4) {
    transform: rotateX(90deg) translateY(-50%);
    transform-origin: top center;
}

.spinner div:nth-of-type(5) {
    transform: rotateX(-90deg) translateY(50%);
    transform-origin: bottom center;
}

.spinner div:nth-of-type(6) {
    transform: translateZ(22px);
}

@keyframes spinner-y0fdc1 {
    0% {
        transform: rotate(45deg) rotateX(-25deg) rotateY(25deg);
    }

    50% {
        transform: rotate(45deg) rotateX(-385deg) rotateY(25deg);
    }

    100% {
        transform: rotate(45deg) rotateX(-385deg) rotateY(385deg);
    }
}