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                <button>Уменьшить межбуквенный интервал</button>

<h1>She Sells Shells by the Sea Shore</h1>

<p class="spaced-out">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Amet, quibusdam doloremque aspernatur ratione ea libero quis officiis odit, qui nisi quo, obcaecati minima ipsa. Alias esse ea vel maxime repellat.</p>



                body {
  text-align: center;
  padding: 20px;

h1 {
  font-size: 5em;
  font-family: 'Abril Fatface';
  font-family: 'Dorsa';
  margin: 0.2em 0 0 0;

p {
  font-family: 'Dorsa';
  font-size: 2.2em;
  margin: 0.5em;

.spaced-out {
  letter-spacing: 2px;


                var button = document.querySelector("button"),
    p = document.querySelector("p"),
    off = "Увеличить межбуквенный интервал",
    on = "Уменьшить межбуквенный интервал",
    kerning = true;

button.addEventListener("click", function() {
  kerning = !kerning;
  button.innerText = (kerning)?on:off;