.app-background {
  display: block;
  position: absolute;
  top:0;
  left:0;
  right: 0;
  height: 100%;
  background: black;
  background-size: cover;
  z-index: -1;
}

.wrapper > .container > section > article {
  font-family: 'Muli', sans-serif;
  position: relative;
  padding: 0px 0;
  display: block;
  text-align: center;
  text-transform: uppercase;
  text-decoration: none;
  color: white;
  font-size: 18px;
}

h1 { 
  text-align: center;
  font-size: 60px;
  opacity: 1;
  color: white;
  
}

h3 { 
  font-size: 38px;
}

h4 { 
  font-size: 28px;
}

p { 
  font-size: 18px;
}

.wrapper > .container > section > article.background {
}

.wrapper > .container > section > article.background:after {
  position: absolute;
  content: " ";
  display: block;
  top: 0;
  left: -100%;
  right: -100%;
  bottom: 0;
  z-index: -1;
  background: black;
}

.wrapper > .container > section > article.backgrounddirecao:after {
  background: none;
}

.backgrounddirecao {
  text-align: center;
  color: white;
  text-transform: uppercase;
  text-decoration: none;
}

.wrapper > .container > section > article.backgroundelementos:after {
  background: none;
}

.backgroundelementos {
  text-align: center;
  color: white;
  text-transform: uppercase;
  text-decoration: none;
}