style 


  <style type="text/css">
  div.content
  {
    width: 100%;
    height: 100%;
    margin: 0px 0px;
    background-color: #ffffff;
    border: 1px solid black;
    opacity:0.6;
    filter:alpha(opacity=60); /* For IE8 and earlier */
  }
  </style>
  </head>

body / embed 


  <body style="background:transparent">
  <div class=content style="background-color:transparent;">
  <embed src="http://www.youtube.com/v/1zbhK_MlIgo?autoplay=1" type="application/x-shockwave-flash" wmode="transparent" width="100%" height="100%"></embed>
  </div>
  </body>
  </html>