<form role="search" method="get" class="searchform group" action="<?php echo home_url( '/' ); ?>">
           <label>
           <span class="offscreen"><?php echo _x( 'Search for:', 'label' ) ?></span>
           <input type="search" class="search-field"
           placeholder="<?php echo esc_attr_x( 'Search', 'placeholder' ) ?>"
           value="<?php echo get_search_query() ?>" name="s"
           title="<?php echo esc_attr_x( 'Search for:', 'label' ) ?>" />
           </label>
           <input type="submit" alt="Submit search query"
           src="<?php echo get_template_directory_uri(); ?>/images/search-icon.png">
          </form>