<form role="search" method="get" id="searchform" class="nav-sea-for" action="<?php echo esc_url( home_url( '/' ) ); ?>">
<input name="s" id="s" type="text" class="inp-hom" placeholder="キーワード検索" value="" required="required">
<input name="" type="submit" class="but-inp-hom fas" value="&#xf002">
</form>