body{
margin:0 0 0 0;
padding:0;
font-family:Calibri;
font-size:14px;

  background: url(images/arka.jpg) no-repeat top center fixed; 
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;


}

.orta{
width:100%;
  margin:0 auto;
  text-align:center;
  padding-top:120px;
}

		@media (max-width:780px) {
		.orta{
		 padding-top:20px;
		}
		}



.logo{
height:150px;
}

		@media (max-width:780px) {
		.logo{
		width:97%;
		height:auto;
		}
		}