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CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

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We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

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Code Indentation


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HTML Settings

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.

body {
  padding: 0;
  margin: 0;
  background-color: black;
  overflow: hidden;
              // based on code by Keith Peters: https://bit101.github.io/lab/dailies/170329.html

var theta = 0;
var frms = 180;

function setup() {
  createCanvas(windowWidth, windowHeight);

function draw() {
  background(243, 134, 48);
  // moving the axis to the center
  translate(width/2, height/2);
  // rotating around the center of the image
  // calculate the time, the y-location of both arcs and their radii
  var t = map(sin(theta), -1, 1, 0.15, 0.85);
  var y0 = -200 + 200 * t;
  var r0 = 400 * t;
  var y1 = 200 - 200 * (1 - t);
  var r1 = 400 * (1 - t);
  //background circle  
  ellipse(0, 0, 400, 400);
  // black part  
  arc(0, 0, 400, 400, PI / 2, TWO_PI-PI / 2);
  arc(0, y0, r0, r0, -PI / 2, PI / 2);
  // white part
  translate(0, 400-r1);
  arc(0, y1, r1, r1, -PI / 2, PI / 2);
  // white dot in black part
  ellipse(0, y0, r0 * 0.1, r0 * 0.1);
  // black dot in white part
  ellipse(0, y1, r1 * 0.1, r1 * 0.1);
  // calculating the angle of rotation
  theta += TWO_PI/frms;
function windowResized() {
  resizeCanvas(windowWidth, windowHeight);
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