/*!
 * Start Bootstrap - Full (http://startbootstrap.com/template-overviews/full)
 * Copyright 2013-2017 Start Bootstrap
 * Licensed under MIT (https://github.com/BlackrockDigital/startbootstrap-full/blob/master/LICENSE)
 */

body {
    background: url('../assets/bg.jpg') no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    background-size: cover;
    -o-background-size: cover;
    font-family: "Ubuntu";
    color: #ffffff;
}

.navbar-brand::after {
  content: " </>";
}

.content {
  margin-top: 76px;
}

.transparent{
  background: rgba(255,255,255,0.2);
}

a.link {
  color: rgba(255,255,255,0.5)
}

a:hover.link {
  color: rgba(255,255,255,0.75)
}

/*!
 * Start Bootstrap - Full (http://startbootstrap.com/template-overviews/full)
 * Copyright 2013-2017 Start Bootstrap
 * Licensed under MIT (https://github.com/BlackrockDigital/startbootstrap-full/blob/master/LICENSE)
 */

body {
    background: url('../assets/bg.jpg') no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    background-size: cover;
    -o-background-size: cover;
    font-family: "Ubuntu";
    color: #ffffff;
    min-height:100%;
    height:auto;
}

.navbar-brand::after {
  content: " </>";
}

.content {
  margin-top: 76px;
}

.transparent{
  background: rgba(255,255,255,0.2);
}

a.link {
  color: rgba(255,255,255,0.5)
}

a:hover.link {
  color: rgba(255,255,255,0.75)
}

Add height rules in css
Add height rules in css
