316 lines
5.5 KiB
CSS
316 lines
5.5 KiB
CSS
:root {
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--count__orbitals: 8;
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--width__inner-content: 11em;
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--width__orbital: 7.5em;
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--radius: 14em;
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--duration__rotation: 50s;
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--duration__pulse: 1.5s;
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--duration__image-hover: 0.3s;
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--duration__feature-hover: 0.3s;
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}
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body, html {
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padding: 0;
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margin: 0;
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background-color: rgba(0, 255, 0, 0.1);
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}
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.wrapper {
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position: relative;
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width: 80vw;
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height: 80vh;
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overflow: hidden;
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font-size: 1rem;
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background-color: white;
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}
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ul, li {
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padding: 0;
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margin: 0;
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list-style: none;
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}
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.orbitals {
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position: relative;
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width: 0;
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height: 0;
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left: 50%;
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top: 50%;
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}
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.orbital {
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position: absolute;
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width: var(--width__orbital);
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height: var(--width__orbital);
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border-radius: 50%;
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left: 50%;
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top: 50%;
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transform: translate(calc(-50% + var(--x-offset)), calc(-50% - var(--y-offset)));
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}
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.orbital {
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/* --angle must be in radians so multiply by 2 * pi */
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--angle: calc(6.28318530360 * var(--index) / var(--count__orbitals));
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/* thanks to https://gist.github.com/stereokai/7666bfe93929b14c2dced148c79e0e97 */
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--sin-term1: var(--angle);
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--sin-term2: calc((var(--angle) * var(--angle) * var(--angle)) / 6);
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--sin-term3: calc((var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle)) / 120);
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--sin-term4: calc((var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle)) / 5040);
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--sin-term5: calc((var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle)) / 362880);
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--sin: calc(var(--sin-term1) - var(--sin-term2) + var(--sin-term3) - var(--sin-term4) + var(--sin-term5));
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/* thanks to https://gist.github.com/stereokai/7666bfe93929b14c2dced148c79e0e97 */
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--cos-term1: 1;
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--cos-term2: calc((var(--angle) * var(--angle)) / 2);
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--cos-term3: calc((var(--angle) * var(--angle) * var(--angle) * var(--angle)) / 24);
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--cos-term4: calc((var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle)) / 720);
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--cos-term5: calc((var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle) * var(--angle)) / 40320);
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--cos: calc(var(--cos-term1) - var(--cos-term2) + var(--cos-term3) - var(--cos-term4) + var(--cos-term5));
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--x-offset: calc(var(--radius) * var(--cos));
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--y-offset: calc(var(--radius) * var(--sin));
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&:nth-child(1) { --index: 0; }
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&:nth-child(2) { --index: 1; }
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&:nth-child(3) { --index: -1; }
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&:nth-child(4) { --index: 2; }
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&:nth-child(5) { --index: -2; }
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&:nth-child(6) { --index: 3; }
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&:nth-child(7) { --index: -3; }
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&:nth-child(8) { --index: 4; }
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&:nth-child(9) { --index: -4; }
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&:nth-child(10) { --index: 5; }
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&:nth-child(11) { --index: -5; }
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&:nth-child(12) { --index: 6; }
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}
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.orbital-content {
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width: 100%;
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height: 100%;
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}
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.inner-content {
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position: absolute;
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width: var(--width__inner-content);
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height: var(--width__inner-content);
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left: 50%;
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top: 50%;
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transform: translate(-50%, -50%);
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border-radius: 3em;
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overflow: hidden;
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}
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.image-hover {
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width: 100%;
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height: 100%;
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& > .img {
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position: absolute;
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width: 100%;
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height: 100%;
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inset: 0;
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object-fit: cover;
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&:last-child {
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transition: opacity var(--duration__image-hover);
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opacity: 0;
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}
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}
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&:hover > .img {
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&:last-child {
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opacity: 1;
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}
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}
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}
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.content-center {
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display: flex;
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flex-direction: column;
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justify-content: center;
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align-items: center;
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}
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.bg {
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&::before {
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content: '';
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display: block;
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position: absolute;
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width: 100%;
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height: 100%;
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top: 0;
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left: 0;
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border-radius: 50%;
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transition: background-color var(--duration__feature-hover);
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}
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}
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.bg--red {
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&::before {
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background-color: rgba(255, 200, 200);
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}
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&:hover::before {
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background-color: rgba(255, 150, 150);
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}
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}
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.bg--green {
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&::before {
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background-color: rgba(200, 255, 200);
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}
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&:hover::before {
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background-color: rgba(150, 255, 150);
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}
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}
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.bg--blue {
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&::before {
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background-color: rgba(200, 200, 255);
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}
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&:hover::before {
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background-color: rgba(150, 150, 255);
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}
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}
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.feature {
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position: relative;
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width: 100%;
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height: 100%;
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text-align: center;
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& > .feature-item {
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position: absolute;
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inset: 0;
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display: flex;
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flex-direction: column;
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justify-content: center;
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align-items: center;
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transition: opacity var(--duration__feature-hover);
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&:first-child {
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opacity: 1;
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}
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&:last-child {
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opacity: 0;
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}
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}
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&:hover {
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& > .feature-item {
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&:first-child {
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opacity: 0;
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}
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&:last-child {
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opacity: 1;
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}
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}
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}
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}
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.orbitals:hover {
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&.clockwise,
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& .anti-clockwise {
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animation-play-state: paused;
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}
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}
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.orbital.pulse:hover {
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&::before {
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animation-play-state: paused;
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}
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}
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.clockwise {
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animation: rotate var(--duration__rotation) linear infinite running;
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}
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.anti-clockwise {
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animation: rotate var(--duration__rotation) reverse linear infinite running;
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}
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.pulse {
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&::before {
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animation: pulse var(--duration__pulse) alternate ease-in-out infinite running;
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}
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&:nth-child(2) {
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&::before {
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animation-delay: 2s;
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}
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}
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&:nth-child(3) {
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&::before {
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animation-delay: 0.4s;
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}
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}
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&:nth-child(4) {
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&::before {
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animation-delay: 1.5s;
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}
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}
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&:nth-child(5) {
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&::before {
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animation-delay: 0.7s;
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}
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}
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&:nth-child(6) {
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&::before {
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animation-delay: 0.2s;
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}
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}
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&:nth-child(7) {
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&::before {
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animation-delay: 1.1s;
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}
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}
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&:nth-child(8) {
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&::before {
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animation-delay: 0.4s;
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}
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}
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}
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@keyframes rotate {
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from {
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transform: rotate(0);
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}
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to {
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transform: rotate(360deg);
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}
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}
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@keyframes pulse {
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from {
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transform: scale(1);
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}
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to {
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transform: scale(1.1);
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}
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}
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