.search-form {
    margin-bottom: 0;
}
#search-block-form {
	outline: none;
}

#search-block-form {
	-webkit-appearance: textfield;
	-webkit-box-sizing: content-box;
	font-family: inherit;
	font-size: 100%;
}

#search-block-form input::-webkit-search-decoration,
#search-block-form input::-webkit-search-cancel-button {
	display: none; 
}

#search-block-form input img{
 display :none;
 }

#search-block-form input{
	background: #000 url(/sites/default/files/search.png) no-repeat 100% center;
	background-size: 37px 37px;
	padding: 9px 10px 9px 32px;
	width: 37px;
	border: 0px;
	height: 37px;

	-webkit-transition: all .5s;
	-moz-transition: all .5s;
	transition: all .5s;
}


/* Demo 2 */
#search-block-form input {
	width: 37px;
	padding-left: 10px;
	color: transparent;
	cursor: pointer;
}
#search-block-form input:hover {
	background-color: #000;
}
#search-block-form input:focus {
	width: 300px;
	height:37px;
	padding-left: 15px;
	color: #fff;
	cursor: auto;
	background: #000 url(/sites/default/files/search.png) no-repeat 100% center;
	background-size: 37px 37px;
}
#search-block-form input:-moz-placeholder {
	color: transparent;
}
#search-block-form input::-webkit-input-placeholder {
	color: transparent;
}

#search-block-form input:focus #menu-secundario {
    display:none;
}