Full Width Slider on child theme

Hi,

I am trying to make the slider full width on the homepage only.

Please help, I add some code that makes it full width on all pages.

The code is this:
add_action( ‘init’, ‘child_theme_init’ );
function child_theme_init() {
add_action( ‘storefront_before_content’, ‘woa_add_full_slider’, 5 );
}

function woa_add_full_slider() { ?>
<div id=”slider”>
<?php echo do_shortcode(“[metaslider id=388 percentwidth=100]”); ?>
</div>
<?php
}

https://ww.wp.xz.cn/plugins/ml-slider/