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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.

<section id="links">
  <a target="_blank" href="">View over Https</a>
  <a target="_blank" href="">Read Blog Post</a>

<div id="screen">
              html {background:#efefef; font-family:"Lato", "Lucida Grande","Lucida Sans Unicode", Tahoma, Sans-Serif; letter-spacing:-0.2px;}
body {margin:0px; padding:0px;}
#links {
  display:flex; padding:5px;
  a {
    display:block; padding:5px 15px;
    border: 3px solid #343436; border-radius: 3px;
    text-align:center; text-decoration:none; color:#fff;
    &:hover {background-color:#4d4d50;}

    #screen {
      position: relative;
      width: 100vw; height: 100vh;
      background: black;
      display: flex;
      align-items: stretch;
    #screen section {
      background-color: white;
      background-image: linear-gradient(to bottom, black 50%, white 50%);
      background-size: 20vh 20vh;
    #screen section:nth-of-type(2n) {
      background-color: black;
      background-position: 0 10vh;
              // set up audio context
var audioContext = (window.AudioContext || window.webkitAudioContext);
// create audio class
if (audioContext) {
  // Web Audio API is available.
  var audioAPI = new audioContext();
} else {
  // Web Audio API is not available. Ask the user to use a supported browser.
  alert("Oh nos! It appears your browser does not support the Web Audio API, please upgrade or use a different browser");

// variables
var analyserNode,
    frequencyData = new Uint8Array(256);
const screen = document.querySelector('#screen'),
    allRepeatedEls = document.querySelectorAll('#screen section'),
    totalEls = allRepeatedEls.length;

// create an audio API analyser node and connect to source
function createAnalyserNode(audioSource) {
  analyserNode = audioAPI.createAnalyser();
  analyserNode.fftSize = 512;

// get's html elements, loops over them & attaches a frequency from analysed data - what you do is up to you!
function animateStuff() {

  for (let i=0; i<totalEls; i++) {

    var freqVol = frequencyData[i*16];

    if (freqVol <= 255 && freqVol > 150) {
      allRepeatedEls[i].style.flex = 2;
    } else if (freqVol <= 150 && freqVol > 90) {
      allRepeatedEls[i].style.flex = 1.5;
    } else if (freqVol <= 90 && freqVol > 40) {
      allRepeatedEls[i].style.flex = 0.5;
    } else { //50 or below
      allRepeatedEls[i].style.flex = 1;      


// getUserMedia success callback -> pipe audio stream into audio API
var gotStream = function(stream) {
    // Create an audio input from the stream.
    var audioSource = audioAPI.createMediaStreamSource(stream);

// pipe in analysing to getUserMedia
navigator.mediaDevices.getUserMedia({ audio: true, video: false })
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