#header {
  /* 1. Navigation wrapper */
}
#content {
  /* 2. Content wrapper */
}
#footer {
  /* 3. Footer wrapper */
}
/*
 * --------------------------------------------------
 * 2. Colours/Backgrounds
 *-------------------------------------------------- 
 */
body.COLOUR-NAME {
  /* Your new colour class to apply to body tag, see: css/theme-schemes.css file for examples */

}
#header.BACKGROUND-NAME {
  /* Your new background class to apply to #header tag, see: css/theme-schemes.css file for examples */

}
/*
 * --------------------------------------------------
 * 3. Page Elements
 *--------------------------------------------------
 */
/*
 * --------------------------------------------------
 * 4. Responsiveness/media queries
 *--------------------------------------------------
 */
@media (max-width: 979px) {
  /* Navbar Collapsed (mobile) */
}
@media (min-width: 980px) {
  /* Navbar Expanded (desktop) */
}
@media (min-width: 1200px) {
  /* Responsive: Large desktop and up (wide) */
}
@media (max-width: 979px) {
  /* Responsive: Mobile to desktop (common for all narrow devices) */
}
@media (min-width: 768px) and (max-width: 979px) {
  /* Responsive: Tablet to desktop (normal) */
}
@media (max-width: 767px) {
  /* Responsive: Landscape phone to desktop/tablet (narrow) */
}
@media (max-width: 480px) {
  /* Responsive: Up to Landscape phone (mobile) */
}