.single-logo{position:fixed;margin:36px;z-index:999}.single-logo img{width:180px;height:auto}.single-logo.left-top{left:0;top:0}.single-logo.left-bottom{left:0;bottom:60px}.single-logo.right-top{right:0;top:0}.single-logo.right-bottom{right:0;bottom:60px}