html, body {
  margin: 0;
  padding: 0;
  background:white;
}
canvas {
   display: block;

  margin-left: auto;
  margin-right: auto;
  width: 100%;

  position:absolute;
   left: 0px;
  top: 00px;
   background:transparent;

  mix-blend-mode: darken;

}

#yt_video{
  z-index : -10;
  margin: 0 auto;
  background: white;
  visibility: hidden;

  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 100%;

  opacity: 0.8;
  filter: alpha(opacity=80);



}