body{
    width: 100%;
    height: 100%;
    color: #fff;
    background: linear-gradient(-45deg, #212121  , #000000, #212121,  #000000, #212121,  #000000, #212121 , #000000, #212121,  #000000, #212121,  #000000,#212121  , #000000, #212121,  #000000, #212121,  #000000, #212121 , #000000, #212121,  #000000  );
    background-size: 400% 400%;
    position: relative;
    animation: change 100s ease-in-out infinite;
}

section{
    width: 100%;
    height: 100%;
    color: #fff;
    background: linear-gradient(-45deg, #212121  , #000000, #212121,  #000000, #212121,  #000000, #212121 , #000000, #212121,  #000000, #212121,  #000000,#212121  , #000000, #212121,  #000000, #212121,  #000000, #212121 , #000000, #212121,  #000000  );
    background-size: 400% 400%;
    position: relative;
    animation: change 100s ease-in-out infinite;
}
h2{
  font-size: 20px
}
strong{
  font-size: 20px
}

p{
  font-size: 20px
}
li{
  font-size: 20px
}
dd{
  font-size: 15px
}
@keyframes change {
  0%{
    background-position: 0 50%;
  }
  50%{
    background-position: 100% 50%;
  }
  100%{
    background-position: 0 50%;
  }
}

a { color: inherit; }