.search {
	border: none;
	width: 160px;
	padding-top:20px;
	padding-left:30px;
}
.search input, .search button {
	border: none;
	float: right;
}
.search input.box {
	font-family: Tahoma; 
	font-size: 11px;
	color:#666;
	width: 140px;
	height: 20px;
	padding: 3px 8px 0;
	background: url(../images/sarzamin/search_box.png) no-repeat right top;
	margin-left: 0px;
}
.search input.box:focus {
	background: url(../images/sarzamin/search_box.png) no-repeat right -20px;
	outline: none;
}
.search button.btn {
	width: 20px;
	height: 20px;
	cursor: pointer;
	text-indent: 0px;
	background: url(../images/sarzamin/search_box.png) no-repeat top left;	
}
.search button.btn:hover {
	background: url(../images/sarzamin/search_box.png) no-repeat top -20px;	
}
<!--[if lte IE 7]>
<link rel="stylesheet" type="text/css" href="ie.css" />
<![endif]-->