html {
  position: relative;
  min-height: 100%;
}
body {
  margin-bottom: 40px; /* Margin bottom by footer height */
}

.footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  
  height: 40px; /* Set the fixed height of the footer here */
  background-color: #f5f5f5;
}

.container .text-muted {
    margin: 10px 0;
}

.page-header {
    margin: 30px 0 5px 0;
}

h1 {
    margin-bottom: 0;
    font-size:22px;
}
#src, #dest {
    width:100%;
    height:20rem;
}

#dest-iframe {
    width:100%;
    height:20rem;
}