Mobile usability errors = Google drops your rankings on mobile. 70% of traffic is mobile in 2025.

In this tutorial, you'll fix all mobile usability errors in Blogger. Follow along and you'll pass Google Search Console test + rank higher.

Step 1: Check Mobile Usability Errors in Search Console

Find exactly what Google hates about your mobile site.

  1. search.google.com/search-console → Left menu → Experience → Mobile Usability
  2. See errors: "Text too small to read", "Clickable elements too close", "Content wider than screen"
  3. Click error → See affected URLs → Click "Test live URL" to confirm

Image: Search Console Mobile Usability report with errors

Step 2: Fix "Text Too Small to Read" Error

Font under 16px = Google penalty. Fix in 2 minutes.

  1. Theme → Edit HTML → Ctrl+F → Search font-size
  2. Find body text CSS. Change any value below 16px to 16px or higher
  3. Example fix:
.post-body {
  font-size: 16px; /* was 12px */
  line-height: 1.6;
}
  1. Save theme → Test again in Search Console

Step 3: Fix "Clickable Elements Too Close" Error

Buttons/links less than 48px apart = users tap wrong thing.

ProblemWhere It HappensCSS Fix
Menu items crampedHeader navigation.menu li { padding: 12px 8px; }
Sidebar links tightPopular Posts widget.PopularPosts li { margin-bottom: 15px; }
Social icons closeFooter or sidebar.social-icons a { margin: 0 10px; }

Rule: Tap targets need 48x48px minimum size + 8px space between.

Step 4: Fix "Content Wider Than Screen" Error

Tables, images, or embeds overflow = horizontal scroll = fail.

  1. Images: Theme → Edit HTML → Find <img → Add this CSS:
.post-body img {
  max-width: 100%;
  height: auto;
}
  1. Tables: Wrap table in div for scroll:
<div style="overflow-x:auto;">
<table>...</table>
</div>
  1. YouTube: Use responsive embed, not fixed width 560px

Step 5: Use Responsive Blogger Template 2025

Old templates from 2015 = not mobile friendly. Switch now.

  1. Theme → Go to "Blogger Theme Gallery" → Pick "Contempo", "Soho", "Emporio", "Notable"
  2. Click "Apply" → Customize → Mobile preview → Test menu + font size
  3. Avoid: Downloaded themes from random sites = usually broken on mobile
  4. Test: search.google.com/test/mobile-friendly → Enter URL → Must show "Page is mobile-friendly"
  5. After fix: Search Console → Mobile Usability → Validate Fix → Wait 7-14 days

Bad practice to avoid: Using <meta name="viewport" with user-scalable=no. Users can't zoom = Google penalty. Always use width=device-width, initial-scale=1.

Important: Mobile-First Indexing = Google ranks mobile version only. Desktop perfect means nothing if mobile fails. Re-test after every theme edit. Core Web Vitals > Mobile Usability for rankings, but fix both.