Quick answer: Use a full-width mobile button or sticky bar with tap-to-call, at least 48px high, in the thumb zone.
If the button is hard to hit, the campaign is hard to love. This guide is written for businesses in the UK and Kent, Surrey and London ad campaigns.
Size
48px minimum. High contrast. Real text, not an image button.
Sticky bars
One bar. Call or WhatsApp. Do not cover the form submit.
Fat fingers
Space between call and secondary links.
Us
Landing Page Design UK mobile landers.
Frequently asked questions
Sticky bar on desktop?
Unnecessary. Header CTA is enough.
Click to call on iOS?
Use tel: links. Test on a real phone.
AMP buttons?
Standard HTML is fine if fast.
Want this handled for you?
A complete, conversion-ready landing page from £150 — designed, written and live within days.
