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  <div class="editor">
    <textarea placeholder="Type here..."></textarea>


                main {
  display: flex;
  flex-direction: column;
  height: 100vh;

header {
  flex: 0 0 auto;
  background: #0074D9;
  padding: 1rem;

.editor {
  flex: 1 1 auto;

.editor textarea {
  width: 100%;
  height: 100%;
  font: inherit;
  border: none;
  padding: .5rem

footer {
  flex: 0 0 auto;
  background: #0074D9;
  padding: 1rem;

/* demo styles */
body {
  font-family: sans-serif;
  color: white;
  padding: 0;
  margin: 0;
  box-sizing: border-box;

*, *:before, *:after {
  box-sizing: inherit;


                // Thanks to a nice little iOS quirk, we need to adjust the height manually
// for a better experience. I'm not a fan of device checks, but not sure how 
// we can feature detect it otherwise.
// More info:

function handleResize() {
  document.querySelector('main').style.height = `${window.innerHeight}px`;

if (/(iPhone|iPod|iPad)/i.test(navigator.platform)) {  
  // Initial resize

  // Resize with the browser
  window.addEventListener('resize', handleResize);