My Site Looks Different on Phone Than on Computer — What's Wrong?

You open your website on your computer and everything sits neatly in place. Then you open it on your phone and suddenly the text spills off the screen, images are cut off, buttons overlap, and the menu has vanished. The natural first reaction is: "Is my site broken?" or "Is it my phone?"

Good news: in most cases it's neither your phone nor a serious malfunction. It's a responsive design problem — how your site adapts to different screen widths. A computer is about 1400px wide; a phone is about 380px. If the site wasn't built to rearrange itself at small widths, it breaks. In this article I'll explain exactly what happens, the real causes, and how it's fixed — so you can talk knowledgeably with whoever built your site.

Why a site looks different on a phone (in short)

A website isn't one fixed "picture." The browser receives the code and arranges it based on the space available. On a wide screen it has room to place things side by side; on a narrow screen it should stack them one under the other.

This is called responsive design: same content, different layout depending on width. Done right, on a phone the menu becomes a "hamburger" button, columns stack vertically, and text stays readable without zooming.

Done wrong, the browser tries to cram the desktop layout into a small screen. That's exactly where your symptoms come from: text running off-screen, cut-off images, overlapping elements. It isn't a random glitch — it's the absence of a rule telling the site "on a small screen, arrange yourself differently."

The 5 most common causes of a broken mobile layout

In practice, almost all mobile problems come from a handful of clear causes:

• Fixed pixel widths: an element set to "1000px wide" won't fit a 380px screen and pushes the page sideways, creating that annoying horizontal scroll.
• Missing "viewport" meta tag: without the line telling the browser to use the phone's real width, the site shows up shrunk, like a desktop page seen from far away.
• Images with no width limit: a big photo doesn't shrink and runs off the screen.
• Text and buttons too small or too close together: hard to read, hard to tap with a finger.
• A theme or template that's "responsive" only on paper: many ready-made templates break the moment you add your real content (long text, differently-shaped photos).

If you recognize the horizontal scroll or text that "runs away," it's almost certainly one of the first two.

How to check it yourself in 2 minutes, no tech skills needed

You don't need to be a programmer to diagnose this. Do this:

• Open the site on your phone and try dragging the page left and right. If it moves sideways and empty space appears, you've got an element wider than the screen — the classic cause.
• Check whether you have to pinch-zoom to read. If so, the viewport tag is probably missing.
• On your computer, open the site and shrink the browser window by dragging its edge until it's as narrow as a phone. A responsive site rearranges as you narrow it; a broken one stays stuck or clips content.

Take a few screenshots of the exact problems (the menu, a button, a specific section). It'll be far easier to show someone what's wrong than to describe it in words.

What it means to truly fix the problem (not just hide it)

There are two kinds of "fixes." The bad ones hide the symptom: they shrink everything until it fits, or simply hide the elements that misbehave on mobile. The result? A site where nothing is readable, or one that's missing important pieces.

The correct fix means the layout is rethought for mobile: columns stack vertically, the menu becomes compact, text stays a readable size, buttons are big enough for a finger, and images scale instead of spilling off-screen.

In practice this is done with "media queries" — rules in the code that say "below 768px, arrange yourself this way." It's not enormous work for someone who knows how, but it requires the site to be built mobile-first, not patched afterward. More than half of a local business's visitors come from a phone, so mobile isn't a secondary case — it's the main case.

When it's worth rebuilding, and how we work at MPO

Sometimes an old site can be corrected in spots. Other times the theme is so rigid that every fix breaks something else — and then, long-term, a new site built correctly from the start is cheaper.

At MPO Web Studio we build everything mobile-first: we design for the phone first, then extend to desktop — the exact opposite of how most sites break. We work remotely across the whole country, with transparent pricing and no "guaranteed #1 on Google" promises (if someone promises you that, be wary).

If you'd like, we'll first make you a free demo — a real version of your site that you view on your own phone before paying anything. Message us on WhatsApp with your current site's address and we'll tell you exactly what's wrong and what a fix would cost.