pre {
  background: #bdc3c7;
  padding: 20px;
  display: inline-block;
  font-family: 'Source Code Pro', sans-serif;
  font-size: 14px;
  border-radius: 15px;
  overflow-x: scroll;
  width: 100%;
  box-sizing: border-box;
  -o-box-sizing: border-box;
  -ms-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box; }

hr {
  border-bottom: 1px solid #bdc3c7;
  margin: 30px 0; }

#image-preview, #callback-preview {
  width: 100%;
  height: 200px;
  position: relative;
  overflow: hidden;
  background-color: #ffffff;
  color: #ecf0f1; }
  #image-preview input, #callback-preview input {
    line-height: 200px;
    font-size: 200px;
    position: absolute;
    opacity: 0;
    z-index: 10; }
  #image-preview label, #callback-preview label {
    position: absolute;
    z-index: 5;
    opacity: 0.8;
    cursor: pointer;
    background-color: #bdc3c7;
    width: 200px;
    height: 50px;
    font-size: 20px;
    line-height: 50px;
    text-transform: uppercase;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    text-align: center; }

#audio-preview {
  background: #ffffff;
  width: auto;
  padding: 20px;
  display: inline-block; }

#audio-upload {
  cursor: pointer;
  background-color: #bdc3c7;
  color: #ecf0f1;
  padding: 20px;
  font-size: 20px;
  text-transform: uppercase; }