GenerateBlocks - Output CSS with Content (for Frontend, to get WordPress content via API)

functions.php

// GENERATEBLOCKS CSS

if (function_exists('generateblocks_get_frontend_block_css')) {
    add_filter('the_content', 'p_css');
}

function p_css($content) {
    global $post;
    $css = wp_strip_all_tags(generateblocks_get_frontend_block_css());
    return '<style id="gb-css">' . $css  . '</style>' . $content;
}