.nav {
	width:500px;
}
.nav img { width:140px;}
.nav .button_menu { width:140px;}
.nav_block { float:left; padding:0px; margin:0 0 5px 5px;}
.fixed {
	position: fixed;
	top: 30px;
	left: 15px;
	width:240px;
	height:30px;
}
.fixed img { width:186px;}
.fixed .button_menu { width:240px;}

.fixed .button_menu {
  /*Transition*/
  -webkit-transition: All 0.4s ease;
  -moz-transition: All 0.4s ease;
  -o-transition: All 0.4s ease;
  -ms-transition: All 0.4s ease;
  transition: All 0.4s ease;
}

.fixed .button_menu:hover {
  background-position: 0px -74px;
}