.day {
    background-image: url(/images/backgrounds/coffee-day-cropped.gif);
  }

.night {
    background-image: url(/images/backgrounds/coffee-night-cropped.gif);
  }

body {
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    background-position: left;
  }
  
.box {
    position: relative;
    margin: 50px 100px;
    padding: 10px;
    border: 2px solid white;
    height: 800px;
    width: 712px;
    color: #FFF;
    background-color: #693723;
    z-index:1;
  }

.overflow {
    overflow: auto;
  }

.box footer {
    position: absolute;
    bottom: 0;
  }