.header-form{
display: inline-block;
    margin: 0;
    padding: 9px 0;
    margin-left: 10px;
}
@media only screen and (max-width: 600px) {
 .header-form{
	z-index: 1;
    padding: 0;
    width: 100%;
    text-align: center;
	}
}