.app-background {
  display: block;
  position: absolute;
  top:0;
  left:0;
  right: 0;
  height: 100%;
  background: none;
  background-repeat: no-repeat;
  background-position: center center;
  background-attachment: fixed;
  background-size: cover;
  z-index: -1;
  }
.wrapper > .container > section > article {
  font-family: 'Muli', sans-serif;
  position: relative;
  padding: 40px 0;
  display: block;
  text-align: center;
  text-decoration: none;
  color: white;
  }
  
h1 { 
  text-align: center;
  font-size: 60px;
  opacity: 1;
  color: white;
  
}

h3 { 
  text-align: center;
  font-size: 30px;
  opacity: 1;
  }

h4 { 
  text-align: center;
  font-size: 15px;
  opacity: 1;
  }

h5 { 
  text-align: justify;
  font-size: 13px;
  opacity: 1;
  }

h6 { 
  text-align: center;
  font-size: 15px;
  opacity: 1;
  }

p { 
  text-align: justify;
  font-size: 15px;
  opacity: 1;
  }

a{
    color: white;
    font-weight: bold;}

a:hover{
    color: white;
    font-weight: bold;}
    
.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.background.cd:after {
  background: transparent;
  background-repeat: no-repeat;
  background-position: center;
  background-attachment: fixed;
  }

.wrapper > .container > section > article.background.videos:after {
  background-color: black;
  }

.wrapper > .container > section > article.background.cancioneiro:after {
  background: rgba(0, 0, 0, 0) url('../images/9.2.jpg');
  background-repeat: no-repeat;
  background-position: center;
  background-attachment: fixed;
  }

  .wrapper > .container > section > article.background.cd1:after {
  background: rgba(0, 0, 0, 0) url('../images/Capa1.jpg');
  background-repeat: no-repeat;
  background-position: center;
  background-attachment: fixed;
  }
  
.wrapper > .container > section > article.background.hashtag:after {
  background-color: black;
  background-repeat: no-repeat;
  background-position: center center;
  background-attachment: fixed;
  }


.cd1 {
  list-style: none;
  display: block;
  margin: 0 20px 20px;
  }

.cd1 > li {
  display: inline-block;
  display: block;
  margin: 0 20px 20px;
  }

.cd2 {
  list-style: none;
  display: block;
  margin: 0 20px 20px;
  }

.cd2 > li {
  display: inline-block;
  display: block;
  margin: 0 20px 20px;
  }

.cancioneiro {
  list-style: none;
  margin: 0 0 0;
  }

.cancioneiro > li {
  display: inline-block;
  margin: 0 20px 20px;
  }

.youtubelogo {
  list-style: none;
  }

.youtubelogo > a {
  display: block;
  width: 144px;
  height: 59px;
  opacity: 0.9;
  background: url('../images/youtube-logo.png') no-repeat center;
  background-size: 144px 59px;
  list-style: none;
  margin: 0 auto;
  }

.youtubelogo:hover > a {
  display: block;
  width: 144px;
  height: 59px;
  opacity: 1;
  background: url('../images/youtube-logo.png') no-repeat center;
  background-size: 144px 59px;
  list-style: none;
  margin: 0 auto;
  }