Font size affects readability, accessibility, AND Core Web Vitals (CLS). Here's the safe way to change it.
- Block editor: per-block size.
- FSE: theme.json global.
- CSS: for surgical control.
Inside WBP Omni SEO Pro: Local SEO & NAP Consistency
Business schema, multi-location LocalBusiness graph, NAP consistency scan across your site, and Google Business Profile / Bing Places sync.
Why this matters for "Change Font Size in WordPress (2026) — Block Editor, FSE, and CSS": Local rankings collapse when name, address or phone drift by a character across pages — LLMs then refuse to cite you as an authority for the location.
- 1Step 1
Brand Authority → NAP → Add business profile(s)
- 2Step 2
Scan the site for NAP mismatches
- 3Step 3
Auto-fix or open a review queue for edge cases
- 4Step 4
Sync to Google Business Profile and Bing Places
"Local SEO is a data-integrity problem wearing a marketing costume."
— WBP Omni SEO Pro
Best practices worth stealing
- Ship the fix as a diff, not a screenshot — reviewers can approve in seconds.
- Log every applied change with user, timestamp and before/after payload.
- Cap batch sizes at 250 URLs so rollback stays surgical.
- Re-crawl within 24h of any apply so attribution stays clean.
Pick one silo, fix its schema and internal linking first, and measure before touching anything else. A tight win on one silo beats a scattered pass across the whole site.
Case study — from audit fatigue to shipped fixes
A DTC brand with 4,200 URLs replaced its quarterly PDF audit with weekly per-silo agentic runs. After 60 days, orphan pages dropped from 812 to 14, FAQ-eligible URLs grew 6×, and AI citations tracked in Local SEO & NAP Consistency rose 41% month-over-month.
Paired module: Presets & Widgets
Reusable presets for meta, schema, sidebar widgets (breadcrumb, related posts, author box) and cornerstone rules — applied by CPT, silo or tag. Presets are how you keep 5,000 posts on-brand without opening 5,000 posts.
- Create a preset per CPT or silo
- Attach schema, widget and meta rules to the preset
- Apply retroactively with a preview
- Version presets so a change is auditable
Best base size?
16px minimum for body text in 2026 (accessibility).
px vs rem?
rem for accessibility (respects user zoom).
How does NAP interact with multi-location sites?
Each location gets its own LocalBusiness node, is scoped to its landing page, and inherits shared Organization data — no duplicate NAP on unrelated pages.
Do presets fight my per-post overrides?
Per-post fields always win; presets only fill fields you left blank, and the UI shows exactly which field came from where.
Ship this workflow inside WordPress
WBP Omni SEO Pro turns every playbook on this blog into an approvable, reversible diff.
Get WBP Omni SEO ProAffiliate — this link goes to the official WBP Omni SEO Pro product page.
