Untitled

dabblet.css

.btn {
  background: firebrick;
  margin: 10vh;
  color: white;
  padding: 1em;
  border: none;
  -webkit-transition: .3s all;
  transition: .3s all;
}
.btn:hover {
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
  background: #d73030;
}

dabblet.html

<button type="button" class="btn">
    A button
</button>
<button type="button" class="btn">
    Another button
</button>

dabblet.js

// alert('Hello world!');

settings.json

{"view":"split-vertical","fontsize":"140","seethrough":"","prefixfree":"1","page":"css"}