body {
  margin: 0;
  background: #000; 
}

video { 
  position: fixed;
  background: url('//demosthenes.info/assets/images/polina.jpg') no-repeat;
  background-size: cover;
  width: auto;
  height: auto;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  -webkit-transform: translateX(-50%) translateY(-50%);
  -moz-transform: translateX(-50%) translateY(-50%);
  -ms-transform: translateX(-50%) translateY(-50%);
  -o-transform: translateX(-50%) translateY(-50%);
  transform: translateX(-50%) translateY(-50%);
  -webkit-transition: 1s opacity;
  -moz-transition: 1s opacity;
  -ms-transition: 1s opacity;
  -o-transition: 1s opacity;
  transition: 1s opacity;
  z-index: -100;

}

.stopfade { 
  opacity: .5;

}

#polina {
  background: rgba(0,0,0,0.3);
  float: right;
  width: 33%;
  color: white;
  font-family: Agenda-Light, Agenda Light, Agenda, Arial Narrow, sans-serif;
  font-weight:100;
  font-size: 1.2rem;
  padding: 2rem;
  margin:2rem;
}

h1 {
  font-size: 3rem;
  margin-top: 0;
  letter-spacing: .3rem;
  -webkit-text-transform: uppercase;
  -moz-text-transform: uppercase;
  -ms-text-transform: uppercase;
  -o-text-transform: uppercase;
  text-transform: uppercase;
}

#polina button {
  display: block;
  background: rgba(255,255,255,0.23);
  width: 80%;
  color: #fff;
  border: none; 
  margin: 1rem auto; 
  padding: .4rem;
  font-size: 1.3rem;
  border-radius: 3px; 
  cursor: pointer;
  -webkit-transition: .3s background;
  -moz-transition: .3s background;
  -ms-transition: .3s background;
  -o-transition: .3s background;
  transition: .3s background;
}

#polina button:hover { 
   background: rgba(0,0,0,0.5);
}

a {
  display: inline-block;
  background:rgba(0,0,0,0.5);
  color:#fff;
  text-decoration:none;
  padding:.5rem;
  -webkit-transition: .6s background;
  -moz-transition: .6s background;
  -ms-transition: .6s background;
  -o-transition: .6s background;
  transition: .6s background;
}
a:hover{
  background:rgba(0,0,0,0.9);
}
@media screen and (max-width:500px){ 
  div{width:70%;} 
}
@media screen and (max-device-width: 800px){
  html{background:url(https://thenewcode.com/assets/images/polina.jpg) #000 no-repeat center center fixed;}
  #bgvid{display: none;}
}