header {position: relative;background-color: #fff;border-bottom: 1px solid #e5e5e5;}
header nav a {color: #484848 !important;}
.btn_header_search input[type="text"] {
    border-color: #484848;
    color: #484848;
    background-image: url('../images/common/icon_search_grey.svg');
}
.btn_header_search input[type="text"]::-webkit-input-placeholder {color: #484848;}
.btn_header_search input[type="text"]::-moz-placeholder {color: #484848;}
.btn_header_search input[type="text"]:-ms-input-placeholder {color: #484848;}
.btn_header_search input[type="text"]:-moz-placeholder {color: #484848;}