Use this skill when validating CSS for Divi 5 / Divi 5.6 compatibility, checking unsupported features or units, troubleshooting Divi CSS that isn't applying, debugging plugin conflicts (WP Rocket, LiteSpeed, Wordfence, WooCommerce, Perfmatters), migrating from Divi 4 to Divi 5, understanding breakpoints, applying the 5.5 Aspect Ratio + Framing settings to prevent CLS, using the 5.3 pseudo-class editing modes (:checked / :focus / :active) instead of custom CSS, the 5.4 Sizing Variable Generator and Relative Colorscheme Generator, the 5.6 new modules (Timeline, Breadcrumbs, SVG, Table of Contents, Instagram Feed), Nested Option Presets, Critical CSS / Dynamic CSS / Inline Stylesheets, or fixing "styles not working" / "button override not working" / "static CSS cache" issues. Provides compatibility rules, validation patterns, specificity fixes, composable settings alternatives, version-specific bug fix history, and a full error-message reference.
Use this skill when writing CSS for Divi 5 / Divi 5.6, styling Divi modules (buttons, sections, rows, blurbs, toggles, forms including the 5.3 Contact Form 7 Styler), the five 5.6 modules (Timeline, Breadcrumbs, SVG, Table of Contents, Instagram Feed), working with Free-Form CSS and the `selector` keyword, overriding `.et_pb_*` classes, setting up design tokens or dark mode, using the 5.4 Sizing Variable Generator or Relative Colorscheme Generator, applying the 5.5 Aspect Ratio / Framing settings, adding animations with reduced-motion, styling WooCommerce with Divi, the 5.3 pseudo-class editing modes (:checked, :focus, :active), Nested Option Presets, building accessible layouts, or developing a Divi child theme. Provides CSS patterns, class naming conventions, selector specificity guidance, Composable Settings alternatives, Canvas and Loop Builder patterns, and full example files for buttons, design tokens, animations, dark mode, WooCommerce, accessibility, forms, Loop Builder, and the 5.6 new modules.
Use this skill when optimizing Divi 5 site performance, improving Core Web Vitals (LCP, INP, CLS), reducing render-blocking CSS, working with Divi's Critical CSS / Dynamic CSS / Inline Stylesheet system, configuring font loading (WOFF2, preload, font-display), lazy-loading background images, preloading above-the-fold images, debugging slow Divi pages, or auditing cache-plugin interactions (WP Rocket RUCSS, LiteSpeed, Autoptimize, Perfmatters). Covers Divi 5.6's per-page component CSS, Section 5.5 Aspect Ratio for CLS prevention, and the per-module helper class pattern for lazy-loading.