Shoesmarket Custom header changes

function.php

function tm_header_v8_search() {
?>
<div class="dropdown shoesmarket-search search">
<button class="btn btn-block" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"><i class="fa fa-search" aria-hidden="true"></i></button>
<div class="dropdown-menu search-dropdown fadeIn animated">
<?php techmarket_navbar_search(); ?>
</div>
</div>
<?php
}

add_action( 'techmarket_header_v8', 'tm_header_v8_search', 25 );

style.css

.header-v8.site-header .sticky-wrapper .techmarket-sticky-wrap.stuck {
	padding-left: 0;
    padding-right: 0;
}

.shoesmarket-search {
	position: static;
}

.shoesmarket-search > button{
	background: transparent;
    font-size: 20px;
} 

.shoesmarket-search > button:hover {
	color: #43454b;
}

.shoesmarket-search .animated {
    -webkit-animation-duration: .3s;
    animation-duration: .3s;
}

.shoesmarket-search .search-dropdown {
	right: 0;
    left: 0;
    border: none;
    z-index: -100000;
}