How to Make Your Sales Page Responsive on Mobile
Learn how to edit the mobile version separately, use relative sizing, and hide elements by device to build pages that convert on mobile.
Why your sales page needs to be responsive on mobile
Making your sales page responsive on mobile means adjusting the layout so it works on any screen size, not just your monitor. Here's what's actually going on: most Meta Ads traffic comes in through mobile. If your page breaks on mobile, you pay for the click and lose the sale on the spot.
The classic mistake is building everything on desktop, thinking it looks gorgeous, and never opening it on your phone to see how it turned out. Then someone clicks your ad, the image blows up huge, the text overlaps, the button disappears. Done.
Edit the mobile version separately from desktop
Every decent page builder has a phone icon. You click it and you're in mobile editing mode. From there, anything you change in the design applies to mobile only. Switch back to desktop mode, and the desktop version stays untouched.
This changes the game. You're not warping one version to fit the other. They're two independent adjustments of the same page.
Example: on desktop you have an image on the left and text on the right, side by side. On mobile, there's just not enough horizontal room for that. Keep them side by side and it gets squeezed, unreadable. So in mobile mode you stack them: image on top, text below.
And the best part: you make that change on mobile, and desktop doesn't feel a thing.
How many columns to use on each device
Columns are where most people mess up. On desktop you use two or three columns side by side because you've got plenty of width. On mobile, it's almost always a single column.
Here's how it works: you go into the section, set two columns on desktop. Elements sit next to each other. Then you switch to mobile mode and set one column. Now they stack, one below the other. Go back to desktop, still two.
The rule of thumb: 99% of the time, side by side is a desktop thing. On mobile, space is so tight that stacking is the only way to keep things readable.
Relative sizing versus fixed sizing
This is the part that separates a page that converts from a page that breaks.
Relative sizing is when the element adjusts to the space it has to fill. An image set to 100% of the column will take up 100% on a small phone and 100% on a tablet, always proportional. Fixed sizing is when you lock it to a pixel value: 800px wide. On a big monitor, fine. On a 360px phone screen, it blows everything out.
The problem with fixed sizing is that there are dozens of screen sizes. Small phone, big phone, 13-inch laptop, 27-inch monitor. If you lock to pixels, the page looks great on YOUR screen and turns into a disaster on the user's.
By default, well-configured elements try to fill as much available space as possible, in a relative way. That's what makes a page behave on any device without you having to redo the setup for each one.
The math is simple: relative adapts, fixed locks. Work in relative whenever you can.
Hide images and elements by device
Not every element needs to show up in both places. A busy background image that looks good on desktop can turn into a blur on mobile. A wide horizontal banner makes no sense on a vertical screen.
The fix is to hide by device. In the image settings, you flag it to not show on mobile, or to not show on desktop. That way you show the right version for each screen without duplicating the whole page.
You can do things like:
- Show a vertical image on mobile only and a horizontal one on desktop only
- Hide a heavy social proof block on mobile so the page loads faster
- Keep a video on desktop only and a static image on mobile
And the size of the image that stays visible is also relative, adjusted to the space it has on that specific screen.
How to test before running traffic
Before you point an ad at your page, open it on your own phone. Don't trust the builder's preview alone. Give it a once-over: readable text, thumb-sized button, image in place, nothing cut off.
Once the page is dialed in and you start running volume, the bottleneck shifts elsewhere: launching the campaigns. Building dozens of ad variations one by one, across multiple accounts, by hand in the Ads Manager, that's where the operation grinds to a halt. This is where platforms like DirectAds handle bulk upload without inflating your team, publishing hundreds of campaigns in minutes with none of the naming errors you get when you do it all manually.
Responsive page plus bulk publishing: both sides of the funnel stop costing you time.
Takeaways
- Go into mobile editing mode and adjust the mobile version separately from desktop. What you change in one doesn't affect the other.
- Use one column on mobile. Side by side is for desktop, stacked is for mobile.
- Set everything to relative sizing, never fixed pixels, so the page behaves on any screen.
- Hide images by device when they only work on one side, and always test on your own phone before running traffic.
Frequently asked questions
Do I need to build two separate pages for desktop and mobile?
No. It's the same page. You just adjust the layout of each version inside the builder itself, switching between desktop mode and mobile mode.
Why does my page look good on my monitor but bad on the user's phone?
It's almost always fixed pixel sizing. When an element doesn't adjust to the screen relatively, it blows out on smaller screens. Swap fixed widths for relative sizing.
Can I hide an element on mobile only?
Yes. In the element settings there's an option to not display on mobile or not display on desktop. It's for showing the right version on each screen without duplicating content.
How many columns should I use on mobile?
One, in most cases. Mobile's horizontal space is too tight to put elements side by side without cramming everything. On desktop you can use two or three.
