You can usually tell exactly which parts of a website were built by the designer and which parts were added afterwards by the owner.
The added part has slightly squarer corners. Its button is a different blue, close to the brand colour but not it. The heading is in a different typeface, or the same typeface at a weight nothing else on the page uses. There is a shadow under the box where nothing else has a shadow, or no shadow where everything else does.
None of it is a mistake anybody made on purpose. It is what happens when you bolt a general-purpose editing tool onto a designed website: the tool has its own idea of what a section looks like, and its idea is not your site’s idea.
This is the problem content blocks were built to avoid, and it is worth explaining why it matters, because it is the difference between a website you keep improving and a website you stop touching.
What a design actually is
When people say a website has a nice design, they usually mean the colours. In practice a design is a much longer list of small, consistent decisions:
- Rounding. How rounded every corner is, from cards to buttons to image edges.
- Borders. Whether there are any, how thick, what colour.
- Shadows. Whether panels lift off the page or sit flat on it.
- Typography. Which typefaces, at which weights, at which sizes, with how much space between lines.
- Spacing. How much air sits inside a card and between sections.
- Your brand colour. Where it appears, and what goes with it.
The reason a well-designed site feels calm is that all of those decisions are made once and applied everywhere. Your eye never has to work out why this box is different from the last box, because it is not.
Break one of those decisions in one place and the page stops feeling designed. Not dramatically. Just enough that a buyer’s impression shifts a notch, without them being able to say why.
Why general-purpose builders drift
A general-purpose page builder has to work on any website. So it ships with its own defaults, and those defaults have to be neutral.
That leaves you doing the matching by hand. You pick a colour that you hope is your brand colour. You guess at a corner radius. You choose a font from a list and hope it is the one your theme uses. If you are careful and you have an eye for it, you can get close.
Then two things happen.
The first is drift. You add a section in March and another in September. By the second one you no longer remember exactly which settings you used, so the two blocks do not quite match each other, let alone the site.
The second is the redesign. You switch to a different theme, everything designed moves across cleanly, and your hand-matched sections stay exactly as they were. Which is now wrong twice over: wrong against the new design, and visibly left behind by it. This is the moment a lot of dealers quietly delete the content they added, and go back to asking for change requests.
The alternative: inherit, do not configure
The better answer is for added content to have no appearance settings of its own at all.
A content block does not store a colour, a corner radius or a typeface. It stores your heading, your words, your image, your button and your link. Everything about how it looks comes from the design the site is running.
Put a block next to a section that came with the theme and they match. Same corners, same borders, same shadows, same fonts, same brand colour on the button. Not approximately. The same, because they are drawing on the same decisions.
Three things follow from that, and they are the practical reasons this is worth caring about.
You cannot get it wrong. There is no colour picker to guess at, so there is no mismatched blue. The fastest way to make sure added content looks right is to remove the ability to make it look wrong.
Blocks added months apart still match. Consistency is not something you maintain. It is a property of how the thing works.
A redesign brings your content with it. Switch to a different theme and your blocks arrive in the new design, wearing the new design. Rounded and shadowed if that is what the new theme does, flat and squared if it is not. You do not rebuild anything, and you are free to change how your site looks without weighing it against the work of redoing everything you added.
What you give up, honestly
There is a trade, and I would rather set it out than pretend there is not.
You cannot make a content block look like anything you want. If you wanted a section in a completely different typeface with a purple button and a hard-edged border, you cannot have it. The block will look like your website.
For the overwhelming majority of dealers, that is the point rather than a limitation. Nobody has ever lost a sale because their warranty section used the same font as the rest of the site. Plenty of websites look amateurish because their sections do not agree with each other.
If you genuinely need a bespoke section that breaks the design deliberately, that is a design conversation rather than a content one, and it should be. The design decisions stay in the design, which is where they belong and where they can be changed once for the whole site.
What this changes about how you work
The real effect is not aesthetic. It is that the cost of saying something on your website drops to almost nothing.
When adding a section means a request, a queue and possibly a charge, you only do it for things that feel important enough to justify the hassle. So the promotion never goes up, the warranty explanation never gets written, and the team page stays a good intention.
When it takes four minutes and cannot look wrong, the calculation changes. You add the seasonal offer. You put the delivery area up because someone rang from thirty miles away and did not know you would come to them. You write the finance paragraph properly because a customer misunderstood it on the phone this morning.
That is the version of a website that gets better over time, rather than the version that gets built once and then slowly stops describing the business.
A short checklist for any platform
If you are weighing up website providers, these are the questions worth asking, whoever you end up with:
- Can I add my own sections without a developer, or is it a change request?
- Do added sections inherit the theme’s fonts, colours, corners and shadows automatically, or do I set those myself?
- If I switch design, does my added content come with me and take on the new look?
- Can I edit on the page and see the result, or am I filling in a form and previewing afterwards?
- Can I hide a section without deleting it?
- Can I reorder sections from one list, rather than hunting around the page?
Any platform can say it is customisable. These six questions tell you whether it is customisable in a way you will still be using in a year.
Frequently asked questions
Can I change the colour of a content block?
Not directly, and that is deliberate. Blocks use your site’s brand colour and design settings, which is what keeps them matching. Change your brand colour in your website settings and every block updates with everything else.
What happens to my blocks if I switch theme?
They come with you and take on the new theme’s look. There is nothing to rebuild.
Does this mean every dealer’s blocks look the same?
No. The content is entirely yours, and the design each block wears is your theme with your brand colour and your images. Two dealers using the same layout on different designs look nothing alike.
Can I still get something bespoke if I really need it?
Yes, but it is a design job rather than a content one. In our experience it is needed far less often than people expect once they see that blocks already match.
Where do I change how my whole site looks?
In your website settings, through the website editor. Design decisions live there and apply everywhere, including to your content blocks.
More from the Vehiso blog
- Introducing content blocks: add your own sections to your dealer website
- 10 sections worth adding to your dealer website home page
- How to customise your car dealer website without a developer
- Car dealer website design: a practical guide for 2026
- Six new car dealer website templates, built for EV dealers