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Adding Classes

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <div class="pen">
		<div class="pen__pointSide pen__pointSide1">
				<div class="pen__side pen__side1"></div>
		</div>
		<div class="pen__pointSide pen__pointSide2">
				<div class="pen__side pen__side2"></div>
		</div>
		<div class="pen__pointSide pen__pointSide3">
				<div class="pen__side pen__side3"></div>
		</div>
		<div class="pen__pointSide pen__pointSide4">
				<div class="pen__side pen__side4"></div>
		</div>
		<div class="pen__pointSide pen__pointSide5">
				<div class="pen__side pen__side5"></div>
		</div>
		<div class="pen__pointSide pen__pointSide6">
				<div class="pen__side pen__side6"></div>
		</div>
		<div class="pen__ring">
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="dodecagon dodecagon-top"></div>
				<div class="dodecagon dodecagon-bottom"></div>
		</div>
		<div class="pen__metal">
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="dodecagon dodecagon-top"></div>
		</div>
		<div class="pen__eraser">
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="face"><div></div></div>
				<div class="dodecagon dodecagon-top"></div>
		</div>
</div>
<div class="penShadow"></div>
!

CSS 

              
                body {
    width: 100vw; height: 100vh;
    margin: 0;
    overflow: hidden;
}

body * {
    position: absolute;
    transform-style: preserve-3d;
}
body *::before, body *::after {
    position: absolute;
    content: '';
}

.pen {
    --point-big-radius: 1.25vw;
    --point-small-radius: calc(var(--point-big-radius) / (2 * tan(180deg / 6)));
    
    --pen-big-radius: 8vw;
    --pen-small-radius: calc(var(--pen-big-radius) / (2 * tan(180deg / 6)));

    --point-angle: 35deg;
    --point-length: calc((var(--pen-small-radius) - var(--point-small-radius)) /  cos(90deg - var(--point-angle)));
    --point-height: calc(var(--point-length) * cos(var(--point-angle)));
    
    --pen-length: 18vw;
    --ring-height: 1vw;
    --metal-height: 4vw;
    --eraser-height: 4vw;
    
    top: 50%; left: 50%;
    width: calc(var(--point-big-radius) * 2);
    aspect-ratio: 1/1;
    transform: translate(-15vw, 15vw) rotateX(118deg) rotateY(38deg) rotateZ(-60deg);
    animation: penRotationAnimation 6s linear infinite;

    /* hexagon points */
    --point1-x: calc(var(--point-big-radius) + var(--point-big-radius) * sin(2 * 1 * 3.14 / 6));
    --point1-y: calc(var(--point-big-radius) + var(--point-big-radius) * cos(2 * 1 * 3.14 / 6));
    --point2-x: calc(var(--point-big-radius) + var(--point-big-radius) * sin(2 * 2 * 3.14 / 6));
    --point2-y: calc(var(--point-big-radius) + var(--point-big-radius) * cos(2 * 2 * 3.14 / 6));
    --point3-x: calc(var(--point-big-radius) + var(--point-big-radius) * sin(2 * 3 * 3.14 / 6));
    --point3-y: calc(var(--point-big-radius) + var(--point-big-radius) * cos(2 * 3 * 3.14 / 6));
    --point4-x: calc(var(--point-big-radius) + var(--point-big-radius) * sin(2 * 4 * 3.14 / 6));
    --point4-y: calc(var(--point-big-radius) + var(--point-big-radius) * cos(2 * 4 * 3.14 / 6));
    --point5-x: calc(var(--point-big-radius) + var(--point-big-radius) * sin(2 * 5 * 3.14 / 6));
    --point5-y: calc(var(--point-big-radius) + var(--point-big-radius) * cos(2 * 5 * 3.14 / 6));
    --point6-x: calc(var(--point-big-radius) + var(--point-big-radius) * sin(2 * 6 * 3.14 / 6));
    --point6-y: calc(var(--point-big-radius) + var(--point-big-radius) * cos(2 * 6 * 3.14 / 6));
}
@keyframes penRotationAnimation {
    to { transform: translate(-15vw, 15vw) rotateX(118deg) rotateY(38deg) rotateZ(calc(-60deg + 1turn)); }
}



/* PENCIL POINT */
.pen::before {
    width: 100%; height: 100%;
    background: #6f6e70;
    clip-path: polygon(var(--point1-x) var(--point1-y),
                       var(--point2-x) var(--point2-y),
                       var(--point3-x) var(--point3-y),
                       var(--point4-x) var(--point4-y),
                       var(--point5-x) var(--point5-y),
                       var(--point6-x) var(--point6-y));
}



/* PENCIL POINT SIDE */
.pen__pointSide {
    width: var(--point-big-radius); height: var(--point-length);
    transform-origin: top left;
}

.pen__pointSide::before {
    left: 50%;
    width: var(--pen-big-radius); height: 100%;
    translate: -50%;
    clip-path: polygon(calc(50% - var(--point-big-radius) / 2) 0, calc(50% + var(--point-big-radius) / 2) 0, 100% 100%, 0% 100%);
    box-shadow: inset 0px 3vw #464547;
    animation: penPointColorAnimation 6s linear infinite;
}
@keyframes penPointColorAnimation {
    0%, 16%, 100% {
        background-color: #dfcbb4;
    }
    32%, 84% {
        background-color: #eadac9;
    }
}

.pen__pointSide1 {
    left: var(--point1-x); top: var(--point1-y);
    transform: rotateZ(150deg) rotateX(calc(90deg + var(--point-angle)));
}

.pen__pointSide2 {
    left: var(--point2-x); top: var(--point2-y);
    transform: rotateZ(90deg) rotateX(calc(90deg + var(--point-angle)));
}

.pen__pointSide3 {
    left: var(--point3-x); top: var(--point3-y);
    transform: rotateZ(30deg) rotateX(calc(90deg + var(--point-angle)));
}

.pen__pointSide4 {
    left: var(--point4-x); top: var(--point4-y);
    transform: rotateZ(-30deg) rotateX(calc(90deg + var(--point-angle)));
}

.pen__pointSide5 {
    left: var(--point5-x); top: var(--point5-y);
    transform: rotateZ(270deg) rotateX(calc(90deg + var(--point-angle)));
}

.pen__pointSide6 {
    left: var(--point6-x); top: var(--point6-y);
    transform: rotateZ(210deg) rotateX(calc(90deg + var(--point-angle)));
}



/* PENCIL SIDE */
.pen__side {
    top: 100%; left: 50%;
    width: var(--pen-big-radius); height: var(--pen-length);
    background-color: #f7d24d;
    transform-origin: top center;
    translate: -50%;
    rotate: x calc(-1 * var(--point-angle));
    animation: penColorAnimation 6s linear infinite;
}
@keyframes penColorAnimation {
    0%, 16%, 100% { background-color: #e5bb28; }
    32%, 84% { background-color: #f7d24d; }
}



/* HEXOGON ANIMATION DELAY */
.pen__pointSide2::before, .pen__side2 {
    animation-delay: -5s;
}

.pen__pointSide3::before, .pen__side3 {
    animation-delay: -4s;
}

.pen__pointSide4::before, .pen__side4 {
    animation-delay: -3s;
}

.pen__pointSide5::before, .pen__side5 {
    animation-delay: -2s;
}

.pen__pointSide6::before, .pen__side6 {
    animation-delay: -1s;
}



/* PENCIL RING */
.pen__ring {
    --ring-radius: calc(var(--pen-big-radius) + 2vw / 2);

    transform: translateZ(calc(var(--point-height) + var(--pen-length))) translate(-50%, -50%);
}

.pen__ring .dodecagon-bottom {
    background-color: #ece5e4;
}
.pen__ring .dodecagon-top {
    background-color: #ece5e4;
    transform: translateZ(var(--ring-height));
}

.pen__ring .face {
    height: var(--ring-height);
    background-color: #e6e5e7;
    animation: penMetalColorAnimation 6s linear infinite;
}
.pen__ring .face > div {
    background-color: #e6e5e7;
    animation: penMetalColorAnimation 6s linear infinite;
}
@keyframes penMetalColorAnimation {
    0%, 16% { background-color: #e6e5e7; } 
    32%, 84% { background-color: #f8f8f9; } 
}



/* BIG METAL RING */
.pen__metal {
    --ring-radius: calc(var(--pen-big-radius) + 1vw / 2);
    
    transform: translateZ(calc(var(--point-height) + var(--pen-length) + var(--ring-height))) translate(-50%, -50%);
}
.pen__metal .dodecagon-top {
    background-color: #ece5e4;
    transform: translateZ(var(--metal-height));
}

.pen__metal .face {
    height: var(--metal-height);
    background-color: #e6e5e7;
    animation: penMetalColorAnimation 6s linear infinite;
}
.pen__metal .face > div {
    background-color: #e6e5e7;
    animation: penMetalColorAnimation 6s linear infinite;
}



/* ERASER */
.pen__eraser {
    --ring-radius: var(--pen-big-radius);

    transform: translateZ(calc(var(--point-height) + var(--pen-length) + var(--ring-height) + var(--metal-height))) translate(-50%, -50%);
}

.pen__eraser .dodecagon-top {
    background-color: #e6a0b8;
    transform: translateZ(var(--eraser-height));
}

.pen__eraser .face {
    background-color: #eec8d4;
    animation: penErazerColorAnimation 6s linear infinite;
}

.pen__eraser .face > div {
    background-color: #eec8d4;
    animation: penErazerColorAnimation 6s linear infinite;
}
@keyframes penErazerColorAnimation {
    0%, 16%, 100% { background-color: #e6a0b8; } 
    32%, 84% { background-color: #eec8d4; } 
}



/* COMMON STYLES */
.pen__metal, .pen__eraser, .pen__ring {
    --point1-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 1 * 3.14 / 12));
    --point1-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 1 * 3.14 / 12));
    --point2-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 2 * 3.14 / 12));
    --point2-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 2 * 3.14 / 12));
    --point3-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 3 * 3.14 / 12));
    --point3-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 3 * 3.14 / 12));
    --point4-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 4 * 3.14 / 12));
    --point4-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 4 * 3.14 / 12));
    --point5-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 5 * 3.14 / 12));
    --point5-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 5 * 3.14 / 12));
    --point6-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 6 * 3.14 / 12));
    --point6-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 6 * 3.14 / 12));
    --point7-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 7 * 3.14 / 12));
    --point7-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 7 * 3.14 / 12));
    --point8-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 8 * 3.14 / 12));
    --point8-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 8 * 3.14 / 12));
    --point9-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 9 * 3.14 / 12));
    --point9-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 9 * 3.14 / 12));
    --point10-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 10 * 3.14 / 12));
    --point10-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 10 * 3.14 / 12));
    --point11-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 11 * 3.14 / 12));
    --point11-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 11 * 3.14 / 12));
    --point12-x: calc(var(--ring-radius) + var(--ring-radius) * sin(2 * 12 * 3.14 / 12));
    --point12-y: calc(var(--ring-radius) + var(--ring-radius) * cos(2 * 12 * 3.14 / 12));

    top: 50%; left: 50%;
    width: calc(var(--ring-radius) * 2);
    aspect-ratio: 1/1;
}

.dodecagon {
    width: 100%; height: 100%;
    clip-path: polygon(var(--point1-x) var(--point1-y),
                       var(--point2-x) var(--point2-y),
                       var(--point3-x) var(--point3-y),
                       var(--point4-x) var(--point4-y),
                       var(--point5-x) var(--point5-y),
                       var(--point6-x) var(--point6-y),
                       var(--point7-x) var(--point7-y),
                       var(--point8-x) var(--point8-y),
                       var(--point9-x) var(--point9-y),
                       var(--point10-x) var(--point10-y),
                       var(--point11-x) var(--point11-y),
                       var(--point12-x) var(--point12-y));
}

.face {
    width: calc(2 * var(--ring-radius) * sin(180deg / 12));
    height: var(--eraser-height);
    transform-origin: top left;
}

.face > div {
    width: 100%; height: 100%;
    transform-origin: top left;
    transform: rotateY(-150deg);
}

.pen__ring .face:nth-child(1),
.pen__metal .face:nth-child(1),
.pen__eraser .face:nth-child(1) {
    left: var(--point1-x); top: var(--point1-y);
    transform: rotateZ(-45deg) rotateX(90deg);
}

.pen__ring .face:nth-child(2),
.pen__metal .face:nth-child(2),
.pen__eraser .face:nth-child(2) {
    left: var(--point3-x); top: var(--point3-y);
    transform: rotateZ(-105deg) rotateX(90deg);
    animation-delay: -5s;
}

.pen__ring .face:nth-child(2) > div,
.pen__metal .face:nth-child(2) > div,
.pen__eraser .face:nth-child(2) > div {
    animation-delay: -5s;
}

.pen__ring .face:nth-child(3),
.pen__metal .face:nth-child(3),
.pen__eraser .face:nth-child(3) {
    left: var(--point5-x); top: var(--point5-y);
    transform: rotateZ(195deg) rotateX(90deg);
    animation-delay: -4s;
}

.pen__ring .face:nth-child(3) > div,
.pen__metal .face:nth-child(3) > div,
.pen__eraser .face:nth-child(3) > div {
    animation-delay: -4s;
}

.pen__ring .face:nth-child(4),
.pen__metal .face:nth-child(4),
.pen__eraser .face:nth-child(4) {
    left: var(--point7-x); top: var(--point7-y);
    transform: rotateZ(135deg) rotateX(90deg);
    animation-delay: -3s;
}

.pen__ring .face:nth-child(4) > div,
.pen__metal .face:nth-child(4) > div,
.pen__eraser .face:nth-child(4) > div {
    animation-delay: -3s;
}

.pen__ring .face:nth-child(5),
.pen__metal .face:nth-child(5),
.pen__eraser .face:nth-child(5) {
    left: var(--point9-x); top: var(--point9-y);
    transform: rotateZ(75deg) rotateX(90deg);
    animation-delay: -2s;
}

.pen__ring .face:nth-child(5) > div,
.pen__metal .face:nth-child(5) > div,
.pen__eraser .face:nth-child(5) > div {
    animation-delay: -2s;
}

.pen__ring .face:nth-child(6),
.pen__metal .face:nth-child(6),
.pen__eraser .face:nth-child(6) {
    left: var(--point11-x); top: var(--point11-y);
    transform: rotateZ(15deg) rotateX(90deg);
    animation-delay: -1s;
}

.pen__ring .face:nth-child(6) > div,
.pen__metal .face:nth-child(6) > div,
.pen__eraser .face:nth-child(6) > div {
    animation-delay: -1s;
}



/* SHADOW */
.penShadow {
    top: 50%; left: 50%;
    width: 20vw; height: 3vw;
    background-color: #464547;
    border-radius: 0% 100% 100% 0% / 0% 50% 50% 0%;
    filter: blur(4vw);
    transform-origin: top center;
    transform: translate(-13vw, 21vw) rotate(122deg) rotateZ(50deg);
}
!

JS
!
999px

Console