Add Smart Slider 3 to Twenty-Seventeen theme
To replace the theme's default image with a slider, you should open this file: \wp-content\themes\twentyseventeen\template-parts\header\header-image.php
And locate this code:
<div> <?php the_custom_header_markup(); ?> </div>
Which creates the image. You should replace the above PHP code with your slider's PHP code. E.g::
<div> <?php echo do_shortcode('[smartslider3 slider=1]'); ?> </div>
And your whole theme file should look like this:
<?php /** * Displays header media * * @package WordPress * @subpackage Twenty_Seventeen * @since 1.0 * @version 1.0 */ ?> <div class="custom-header"> <div class="custom-header-media"> <?php echo do_shortcode('[smartslider3 slider=1]'); ?> </div> <?php get_template_part( 'template-parts/header/site', 'branding' ); ?> </div><!-- .custom-header -->