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HTML

              
                - var faces = ['left', 'right', 'top', 'bottom', 'back', 'front'], pieces = 26
#scene.scene
	#pivot.pivot.centered(style = 'transform: rotateX(-35deg) rotateY(-135deg);')
		#cube.cube
			while pieces--
				.piece
					each face in faces
						div(class = 'element ' + face)
	.credits
		.text(style = 'position: initial') Wanna make solver, but I'm too lazy to translate 100 lines of my Cpp's solver to JS...
#guide
	- var n = 4
	while n--
		div(id = 'anchor' + n class = 'anchor' style = 'transform: translateZ(3px) translateY(-33.33%) rotate(' + (-90 * n) + 'deg) translateY(66.67%)')
              
            
!

CSS

              
                $base-color: #0A0A0A;
$ground-color: #2F2F31;
$element-size: 2em;
$sticker-size: 95%;
$rounded: 10%;
$cube-scale: 1.9;
$faces: (left: (0, -90, 180), right: (0, 90, 90), back: (0, 180, -90), front: (0, 0, 0), bottom: (-90, 0, -90), top: (90, 0, 180));
$colors: (blue: #001ca8, green: #006E16, white: #DDD, yellow: #E0AE00, orange: #FF5000, red: #DF0500);

html, body {
	height: 100%;
	overflow: hidden;
	background: radial-gradient(circle, white, rgba(black, .5)) {
		color: $ground-color;
		blend-mode: overlay; }
}

.credits {
	width: 100%;
	top: 90%;
}

.text {
	text-align: center;
	font: { family: Helvetica; size: .8rem; }
	color: grey;
	pointer-events: none;
}

.centered {
	position: absolute;
	top: 0; bottom: 0; left: 0; right: 0;
	margin: auto;
}

.scene {
	width: 100%;
	height: 100%;
	perspective: 1200px;
	transform-style: preserve-3d;
	> .pivot {
		width: 0;
		height: 0;
		transition: .18s;
	}
	.anchor {
		width: $element-size;
		height: $element-size * 3;
	}
	div {
		position: absolute;
		transform-style: inherit;
	}
}

#piece4 > .element.top > .sticker {
	background-image: URL('http://i63.tinypic.com/25hh1xu.png');
	background-size: cover;
}

.cube {
	font-size: $cube-scale * 100%;
	margin-left: -$element-size / 2;
	margin-top: -$element-size / 2;

	> .piece {
		width: $element-size - .1em;
		height: $element-size - .1em;
		> .element {
			width: 100%;
			height: 100%;
			background: $base-color;
			outline: 1px solid transparent; // firefox aliasing
			border: .05em solid $base-color { radius: $rounded }
			@each $face, $angles in $faces {
					&.#{$face} {
						transform: rotateX + '(' + nth($angles, 1) + 'deg)'
											 rotateY + '(' + nth($angles, 2) + 'deg)'
											 rotateZ + '(' + nth($angles, 3) + 'deg)' translateZ($element-size / 2);
					}
			}
			> .sticker {
				@extend .centered;
				transform: translateZ(2px);
				width: $sticker-size;
				height: $sticker-size;
				border-radius: $rounded;
				outline: 1px solid transparent; // firefox aliasing
				box-shadow: inset .05em .05em .2rem 0 rgba(white, .25),
										inset -.05em -.05em .2rem 0 rgba(black, .25);
				@each $color, $value in $colors {
					&.#{$color} { background-color: $value }
				}
			}
		}
	}

}
              
            
!

JS

              
                var colors = ['blue', 'green', 'white', 'yellow', 'orange', 'red'],
		pieces = document.getElementsByClassName('piece');

// Returns j-th adjacent face of i-th face
function mx(i, j) {
	return ([2, 4, 3, 5][j % 4 |0] + i % 2 * ((j|0) % 4 * 2 + 3) + 2 * (i / 2 |0)) % 6;
}

function getAxis(face) {
	return String.fromCharCode('X'.charCodeAt(0) + face / 2); // X, Y or Z
}

// Moves each of 26 pieces to their places, assigns IDs and attaches stickers
function assembleCube() {
	function moveto(face) {
		id = id + (1 << face);
		pieces[i].children[face].appendChild(document.createElement('div'))
			.setAttribute('class', 'sticker ' + colors[face]);
		return 'translate' + getAxis(face) + '(' + (face % 2 * 4 - 2) + 'em)';
	}
	for (var id, x, i = 0; id = 0, i < 26; i++) {
		x = mx(i, i % 18);
		pieces[i].style.transform = 'rotateX(0deg)' + moveto(i % 6) +
			(i > 5 ? moveto(x) + (i > 17 ? moveto(mx(x, x + 2)) : '') : '');
		pieces[i].setAttribute('id', 'piece' + id);
	}
}

function getPieceBy(face, index, corner) {
	return document.getElementById('piece' +
		((1 << face) + (1 << mx(face, index)) + (1 << mx(face, index + 1)) * corner));
}

// Swaps stickers of the face (by clockwise) stated times, thereby rotates the face
function swapPieces(face, times) {
	for (var i = 0; i < 6 * times; i++) {
		var piece1 = getPieceBy(face, i / 2, i % 2),
				piece2 = getPieceBy(face, i / 2 + 1, i % 2);
		for (var j = 0; j < 5; j++) {
			var sticker1 = piece1.children[j < 4 ? mx(face, j) : face].firstChild,
					sticker2 = piece2.children[j < 4 ? mx(face, j + 1) : face].firstChild,
					className = sticker1 ? sticker1.className : '';
			if (className)
				sticker1.className = sticker2.className,
				sticker2.className = className;
		}
	}
}

// Animates rotation of the face (by clockwise if cw), and then swaps stickers
function animateRotation(face, cw, currentTime) {
	var k = .3 * (face % 2 * 2 - 1) * (2 * cw - 1),
			qubes = Array(9).fill(pieces[face]).map(function (value, index) {
				return index ? getPieceBy(face, index / 2, index % 2) : value;
			});
	(function rotatePieces() {
		var passed = Date.now() - currentTime,
				style = 'rotate' + getAxis(face) + '(' + k * passed * (passed < 300) + 'deg)';
		qubes.forEach(function (piece) {
			piece.style.transform = piece.style.transform.replace(/rotate.\(\S+\)/, style);
		});
		if (passed >= 300)
			return swapPieces(face, 3 - 2 * cw);
		requestAnimationFrame(rotatePieces);
	})();
}

// Events
function mousedown(md_e) {
	var startXY = pivot.style.transform.match(/-?\d+\.?\d*/g).map(Number),
			element = md_e.target.closest('.element'),
			face = [].indexOf.call((element || cube).parentNode.children, element);
	function mousemove(mm_e) {
		if (element) {
			var gid = /\d/.exec(document.elementFromPoint(mm_e.pageX, mm_e.pageY).id);
			if (gid && gid.input.includes('anchor')) {
				mouseup();
				var e = element.parentNode.children[mx(face, Number(gid) + 3)].hasChildNodes();
				animateRotation(mx(face, Number(gid) + 1 + 2 * e), e, Date.now());
			}
		} else pivot.style.transform =
			'rotateX(' + (startXY[0] - (mm_e.pageY - md_e.pageY) / 2) + 'deg)' +
			'rotateY(' + (startXY[1] + (mm_e.pageX - md_e.pageX) / 2) + 'deg)';
	}
	function mouseup() {
		document.body.appendChild(guide);
		scene.removeEventListener('mousemove', mousemove);
		document.removeEventListener('mouseup', mouseup);
		scene.addEventListener('mousedown', mousedown);
	}

	(element || document.body).appendChild(guide);
	scene.addEventListener('mousemove', mousemove);
	document.addEventListener('mouseup', mouseup);
	scene.removeEventListener('mousedown', mousedown);
}

document.ondragstart = function() { return false; }
window.addEventListener('load', assembleCube);
scene.addEventListener('mousedown', mousedown);
              
            
!
999px

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