.photo-app {
    bottom: 0;
    left: 0;
    position: absolute;
    top: 0;
	right: 0;
	height: 600px;
	width:800px ;
  }

  .header {
    background-color: #666;
    height: 3rem;
    overflow: hidden;
    padding-left: 1rem;
    padding-right: 1rem;
    position: relative;
	z-index: 1;
	margin: -1rem;
  }

  @media (min-width: 768px) {
    .header {
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
  }

  .title {
    color: #fff;
    display: block;
    float: left;
    font-size: 1.125rem;
    line-height: 3rem;
  }

  .main {
    background-color: #333;
    bottom: 0;
    left: 0;
    position: absolute;
    right: 0;
    top: 3rem;
  }