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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              html, body, canvas
	height: 100%
	width: 100%
	margin: 0

body
	background: #000

canvas
	position: absolute
	top: 0
	left: 0

            
          
!
            
              const HORIZON_Y = 0.8;
const SPACING_Y = 2.4;
const SPACING_X = 40;
const SPACING_SCANLINES = 12;
const SKEW = 7;
const SPEED = 0.014;
const P_GLITCH = 0.005;
const GLITCH_PAUSE_DURATION = [1000, 1200]; // min, max in ms.
const COLOR = [55, 255, 55];
const TITLE = 'CYBER PILOT';

const dynamicCtx = document.createElement('canvas').getContext('2d');
const staticCtx  = document.createElement('canvas').getContext('2d');
const screenCtx  = document.createElement('canvas').getContext('2d');
const ctxs = [dynamicCtx, staticCtx, screenCtx];

// Define and hydrate the state.
// The rest is filled onResize.
const state = {
	glitched: false,
	yOffset: 0,
};

function onResize () {
	const h = state.h = window.innerHeight * 2;
	const w = state.w = window.innerWidth * 2;
	const y0 = state.y0 = h * (1 - HORIZON_Y);
	state.nHorizontal =
		Math.pow((h * HORIZON_Y), 1 / SPACING_Y);
	state.nVertical = Math.ceil(w / SPACING_X);
	state.nScanlines = Math.ceil(h / SPACING_SCANLINES);
	
	// Update the DOM.
	ctxs.forEach(ctx => {
		ctx.canvas.height = state.h;
		ctx.canvas.width = state.w;
	});
	
	drawStatic();
};

function drawStatic () {
	const {h, w, y0, nVertical} = state;
	const ctx = staticCtx;
	
	ctx.clearRect(0, 0, w, h);
	
	// Draw vertical lines.
	for (let n = 0; n < nVertical; ++n) {
		ctx.beginPath();
		const x = (nVertical/2 - n);
		const x1 = x * SPACING_X + w/2;
		const x2 = x * SPACING_X * SKEW + w/2;
		ctx.beginPath();
		ctx.moveTo(x1, 0);
		ctx.lineTo(x1, y0);
		ctx.lineTo(x2, h);
		stroke(ctx);
	}
	
	// Fade the lines on the wall.
	const fade = ctx.createLinearGradient(0, 0, 0, y0);
	fade.addColorStop(0.0, 'rgba(0, 0, 0, 1)');
	fade.addColorStop(0.5, 'rgba(0, 0, 0, 0.65)');
	fade.addColorStop(1.0, 'rgba(0, 0, 0, 0)');
	ctx.fillStyle = fade;
	ctx.fillRect(0, 0, w, y0);

	// Draw spaceship.
	ctx.beginPath();
	ctx.arc(w / 2, h / 2, SPACING_X * 1.5, Math.PI * 5 / 16, Math.PI * 11 / 16);
	ctx.lineTo(w / 2, h / 2);
	ctx.closePath();
	stroke(ctx);

	// Draw title.
	ctx.textAlign = 'center';
	ctx.textBaseline = 'middle';
	ctx.fillStyle = `rgba(${COLOR}, ${1/3})`;
	ctx.font = 'bold 20pt "Monoton", monospace';
	ctx.fillText(TITLE, w / 2, y0 / 2.8);
	ctx.fillStyle = `rgba(${COLOR}, ${2/3})`;
	ctx.font = 'bold 36pt "Monoton", monospace';
	ctx.fillText(TITLE, w / 2, y0 / 2.3);
	ctx.fillStyle = `rgba(${COLOR}, 1)`;
	ctx.font = 'bold 64pt "Monoton", monospace';
	ctx.fillText(TITLE, w / 2, y0 / 1.8);
	
	drawScreenArtifacts();
}

function drawScreenArtifacts () {
	const {h, w} = state;
	const ctx = screenCtx;
	
	ctx.clearRect(0, 0, w, h);
	
	// Draw scanlines.
	const strokeOptions = {
		c1: 'rgba(44, 74, 44, 0.16)',
		c2: 'rgba(0, 10, 0, 0.16)',
	};
	for (let n = 0; n < state.nScanlines; ++n) {
		const y = n * SPACING_SCANLINES;
		ctx.beginPath();
		ctx.moveTo(0, y);
		ctx.lineTo(w, y);
		stroke(ctx, strokeOptions);
	}
	
	// Draw glow.
	ctx.beginPath();
	const glow = ctx.createRadialGradient(
		w / 2, h / 2, Math.max(w, h),
		w / 2, h / 2, SPACING_X * 1.5
	);
	glow.addColorStop(0.2, 'rgba(0, 0, 0, 0.16)');
	glow.addColorStop(1.0, `rgba(${COLOR}, 0.16)`);
	ctx.fillStyle = glow;
	ctx.fillRect(0, 0, w, h);
}

function drawDynamic () {
	const {h, w, y0, nHorizontal, yOffset} = state;
	const ctx = dynamicCtx;
	
	ctx.clearRect(0, 0, w, h);
	
	// Draw horizontal lines.
	for (let n = 0; n < nHorizontal; n++) {
		const y = y0 + 2 + Math.pow(n + yOffset, SPACING_Y);
		ctx.beginPath();
		ctx.moveTo(0, y);
		ctx.lineTo(w, y);
		stroke(ctx);
	}

	state.yOffset = (yOffset + SPEED) % 1;
}

function drawLoop () {
	requestAnimationFrame(drawLoop);

	if (state.glitched) return;
	drawDynamic();
	
	if (Math.random() > P_GLITCH) return;
	drawGlitch();
}

function drawGlitch () {
	const {w, h} = state;
	  
	dynamicCtx.drawImage(staticCtx.canvas, 0, 0);
	staticCtx.clearRect(0, 0, w, h);
	
	const fullImageData = dynamicCtx.getImageData(0, 0, w, h);
	const glitchOptions = {
	    quality: 4,
	    amount: 0,
    	iterations: 2,
	};
	glitch(glitchOptions)
	    .fromImageData(fullImageData)
	    .toImageData()
    	.then(imageData => {
			dynamicCtx.clearRect(0, 0, w, h);
			dynamicCtx.putImageData(imageData, 0, 0);
        })
		;
	
	state.glitched = true;
	
	const [minDelay, maxDelay] = GLITCH_PAUSE_DURATION;
	const delay = minDelay + Math.random() * (maxDelay - minDelay);
	setTimeout(_ => {
		drawStatic();
		state.glitched = false;
	}, delay);
}

window.addEventListener('resize', throttle(onResize));

// Kick it off!
WebFont.load({
	active: function () {
		onResize();
		drawLoop();
		ctxs.forEach(({canvas}) => {
			document.body.appendChild(canvas);
		});
	},
	classes: false,
	google: {
		families: ['Monoton'],
	},
});

// A thin white line gives us a nice glow-y effect.
function stroke (ctx, {
	w1 = 10,
	w2 = 2,
	c1 = `rgba(${COLOR}, 0.5)`,
	c2 = `rgb(${COLOR})`,
} = {}) {
	ctx.lineWidth = w1;
	ctx.strokeStyle = c1;
	ctx.stroke();
	ctx.lineWidth = w2;
	ctx.strokeStyle = c2;
	ctx.stroke();
}

// Throttles a function to RAF.
function throttle (cb) {
	let queued = false;
	
	return (...args) => {
		if (queued) return;
		
		queued = true;
		requestAnimationFrame(_ => {
			queued = false;
			cb(...args);
		});
	};
}
            
          
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