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CSS Base

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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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Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

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Use npm Packages

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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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.

              <canvas id="matisse"></canvas>

<div id="menu"> 
  <div class="tray">
    <button class="clear">Clear</button>
    <button class="save">Save</button>
              * { margin: 0; padding: 0; }
body {  overflow: hidden; }

#menu { position: absolute; top: 10px; right: 10px; }
  // initialize drawing status
  var shape = {
    status: false,
    color: 'rgba(34,121,192,.85)',
    shadowColor: 'rgba(34,121,192,1)',
    startX: 0,
    startY: 0,
    coords: []
  // get the menu and buttons
  var $menu = $('#menu');
  var $buttonClear = $('#menu .clear');
  var $buttonSave = $('#menu .save');
  // get the canvas, set to full width
  var canvas = $('canvas')[0];
  canvas.width = $(document).width();
  canvas.height = $(document).height();
  // get the context
  var ctx = canvas.getContext('2d');
  // fill the initial canvas
  ctx.fillStyle = "#fffff3";
  // set the click event to start drawing
    // 1. get the x,y just clicked
    var currentX = e.clientX;
    var currentY = e.clientY;
    // 2. if shape not drawn yet, set init values, hide menu, and draw start
    if ( !shape.status ) {

      // set fill, stroke, and shadow styles
      ctx.fillStyle = shape.color;
      ctx.strokeStyle = shape.color;
      ctx.lineWidth = 1;
      ctx.shadowOffsetX = 0;
      ctx.shadowOffsetY = 0; 
      ctx.shadowBlur = 1;
      ctx.shadowColor = shape.shadowColor;
      // draw the shape
      shape.status = true;
      shape.startX = currentX;
      shape.startY = currentY;
      ctx.moveTo(currentX, currentY);
      ctx.fillRect(currentX, currentY, 2, 2);
    // 3. else, we can draw a line of our shape...
    else {
      // 3.a get the previous x,y clicked
      var lastX = shape.coords[shape.coords.length - 1][0];
      var lastY = shape.coords[shape.coords.length - 1][1];
      // 3.b draw the line
      ctx.lineTo(currentX, currentY);
      // 3.c if this is within 10px of the initial coordinate and there are less than three points in the shape so far, close it and fill the shape and show menu again
      if ( Math.abs( shape.startX - currentX ) < 11 && Math.abs( shape.startY - currentY ) < 11 && shape.coords.length > 2 ) {
        ctx.lineTo( shape.startX, shape.startY);
        // reset shape and wash your hands of it
        shape.status = false; 
        shape.coords = [];
    // 4. add this coordinate to our array
  // clear canvas when clear button clicked
    ctx.fillStyle = "#fffff3";
  // open png in new window when save button clicked
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