html	{height: 100%; background: #000000;}
	body	{min-height: 100%; width: 70%; margin: 0 auto; /* center */ padding: 0 20px;
		 border: 1px solid black; border-width: 0 1px;
		 background: #ffd700;}
        .logo {
          position: relative;
          margin-left: auto ;
          margin-right: auto ;
        }

	.hydi {
	  position: relative;
	  margin-left: auto ;
	  margin-right: auto ;
	}