body, html {
  height: 100%
}
body {
  margin: 0;
  font-family: verdana, sans-serif;
  background-color: #efefef; 
	font-size: 1.5rem;
}

.container-fluid {
  width: 100%;
  padding-right: calc(0.25rem * 0.5);
  padding-left: calc(0.25rem * 0.5);
  margin-right: auto;
  margin-left: auto;
	background-image: url('bg.jpg');
  height: 100%;
  background-position: center;
  background-size: cover;
}

.container {
  width: 100%;
  padding: 0.5rem;
  margin: 0 auto;
  color: #fff;
}

@media (min-width: 576px) { 
  .container {
     max-width: 540px;
   }
 }
 @media (min-width: 768px) {
   .container {
     max-width: 720px;
   }
 }
 @media (min-width: 992px) {
   .container {
     max-width: 960px;
   }
 }
 @media (min-width: 1200px) {
   .container {
     max-width: 1140px;
   }
 }
 @media (min-width: 1400px) {
   .container {
     max-width: 1320px;
   }
 }
 
 h1 {
  font-size: calc(1.375rem + 1.5vw);
	display: inline-block;
	background-color: rgba(0, 0, 0, 0.3);
}
@media (min-width: 1200px) {
  h1 {
    font-size: 2.5rem;
  }
}

h2 {
  font-size: calc(1.325rem + 0.9vw);
}
@media (min-width: 1200px) {
  h2 {
    font-size: 2rem;
  }
}