body{
  overflow-x: hidden;
  overflow-y: scroll;
  background-color: #fff;
  font-family: Arial, Helvetica, sans-serif;
  margin:0;
  font-size:22px;
 }

 #hero{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 100vh;
  min-height:500px;
  background: #333 url(../imgs/download.png) no-repeat center center fixed; 
 
}

 #section1{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 150vh;
  min-height:500px;
  background: url(../imgs/1.png) no-repeat center center fixed; 
  padding:20px;
  color:#000;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

#section1bw{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 100px;
 
  background: #000 url(../imgs/o.jpg) no-repeat center center fixed; 
  padding-top:70px;
  color:#fff;
  text-align:center;
   -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}


 #section2{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 150vh;
  min-height:500px;
  background: url(../imgs/2.png) no-repeat center center fixed; 
  padding:20px;
  color:#212121;
    -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

 #section2bw{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 100px;

  background: #000 url(../imgs/.jpg) no-repeat center center fixed; 
   padding-top:70px;
  color:#fff;
  text-align:center;
    -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}


 #section3{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 150vh;
  min-height:500px;
  background: url(../imgs/3.png) no-repeat center center fixed;  
  padding:20px;
  color:#212121;
    -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

 #section3bw{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 100px;
 
  background: #000 url(../imgs/.jpg) no-repeat center center fixed;  
   padding-top:70px;
  color:#fff;
  text-align:center;
    -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

 #section4{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 150vh;
  min-height:500px;
  background: url(../imgs/4.png) no-repeat center center fixed;  
  padding:20px;
  color:#212121;
    -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

 #section4bw{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 100px;
 
  background: #000 url(../imgs/.jpg) no-repeat center center fixed;  
    padding-top:70px;
  color:#fff;
  text-align:center;
    -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

 #section5{
  position:relative;
  width: 150%;
  overflow:hidden;
  height: 100vh;
  min-height:500px;
  background: url(../imgs/5.png) no-repeat center center fixed; 
  padding:20px;
  color:#212121;
    -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

 #section5bw{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 100px;
 
  background: #000 url(../imgs/.jpg) no-repeat center center fixed; 
    padding-top:70px;
  color:#fff;
  text-align:center;
    -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}


 #section6{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 150vh;
  min-height:500px;
  background: url(../imgs/6.png) no-repeat center center fixed; 
  padding:20px;
  color:#212121;
    -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

 #section6bw{
  position:relative;
  width: 100%;
  overflow:hidden;
  height: 100px;
 
  background: #000 url(../imgs/.jpg) no-repeat center center fixed; 
    padding-top:70px;
  color:#fff;
  text-align:center;
    -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}