.large-header {
   position: relative;
   width: 100%;
   background: #111;
   overflow: hidden;
   background-size: cover;
   background-position: center center;
   z-index: 1;
   height: 100%;
}

.demo .large-header {
   background-image: url("goat.jpg");
   background-position: top;
}

.main-title {
   position: absolute;
   margin: 0;
   padding: 0;
   color: #F9F1E9;
   text-align: center;
   top: 50%;
   left: 50%;
   -webkit-transform: translate3d(-50%, -50%, 0);
   transform: translate3d(-50%, -50%, 0);
}

.demo .main-title {
   text-transform: uppercase;
   font-size: 4.2em;
   letter-spacing: 0.1em;
   text-shadow: 2px 2px darkviolet;
}

.main-title .thin {
   font-weight: 200;
}

html, body
{
	min-height: 100vh;
}

@media only screen and (max-width: 768px) {
   .demo .main-title {
      font-size: 3em;
   }
}