<form role="search" method="get" id="searchform" action="<?php echo home_url( '/' ); ?>">
    <div>
        <input type="text" value="" name="s" id="s" placeholder="<?php _e( 'Search here', 'flatroom'); ?>">
        <input type="submit" id="searchsubmit" class="btn" value="<?php _e( 'Go', 'flatroom'); ?>" >
    </div>
</form>