“Elegance is achieved when all that is superfluous has been discarded and the human being discovers simplicity and concentration: the simpler and more sober the posture, the more beautiful it will be.” –Paulo Coelho

A web designer’s mission is to create engaging user experiences, help site visitors accomplish tasks, and increase conversions. In the process, they often only focus on aesthetics, take shortcuts, and end up relying on various common design patterns and trends. The danger in this is that they can get sidetracked by popular trends, and consequently, common UX mistakes are made because the trends are inappropriately deployed.

When it comes to the web, people don’t want to learn things, they want to do things. There are plenty of examples on the web where designers opted to focus only on visual appeal and in so doing, sacrificed usability. They presumed a “wow moment” which drove the design would be powerful enough in itself to engage the user. But sadly, the users are having a hard time understanding the UI, have genuine difficulty using the site, and the site’s bounce rates have skyrocketed.

As Kate Rutter stated, “Ugly but useful trumps pretty but pointless.” The key to using web design patterns and trends effectively is to find a balance between what looks aesthetically pleasing and where they add value.

Common UX mistakes drive people away.
Designers should do everything they can to avoid common UX mistakes and putting roadblocks into the user’s paths.

Let’s look at some common UX mistakes.

More and more tall sticky headers can be seen on websites. “Branding blocks” and navigation menus that have a fixed position and take up a significant amount of space. They stay glued to the top of the browser window (the “sticky header”) and often block the content as it scrolls underneath them.

Some headers on big-brand websites are over 150 pixels in height. Where is their value? Fixed elements, such as sticky headers can have real benefits, but web designers should be careful using them—there are several important UX issues to consider.

Big fat sticky headers are a major UX mistake.
The sticky header on this site is over 160 pixels tall taking up a lot of the viewable area.

If the decision to go with a sticky nav header has already been made, it’s best to test it with users. It’s a common UX mistake to go overboard and stuff the sticky nav header with content. With a fixed header, browsing should still be comfortable for visitors. Failing to find the right balance may result in leaving a small amount of room for the main content and a stifling, claustrophobic site experience for visitors.

Sometimes there is a simple workaround with CSS: by making the sticky header slightly transparent, people are still able to see content through it as they scroll, which makes the content area feel more substantial.

Here is an example of a tall sticky header: ATP’s player profile page on Roger Federer.

Large sticky navigation on websites is one of the most common UX mistakes.

This site’s sticky header has a height of over 180px! That’s over 30% of the entire page height on some laptops: a poor user experience that’s avoidable.

Some people may be using large, high-resolution computer displays where a sticky nav header could speed up interactions, but what about mobile? Without a doubt a significant number of site visitors would be accessing the site from a mobile device, so a fixed header may not be the best idea. Luckily, responsive design techniques make it possible to design different solutions for different platforms, and stick with the sticky nav header—pun intended—for desktop browsers.

The Coffee with a Cop site also has a fixed header, but much smaller—less than 80 pixels tall.

Common UX mistakes that web designers make.

The header navigation, in this case, is arguably the right solution for high-resolution screens, as it enables more efficient navigation. On smaller resolution screens, the header is also fixed but takes up a considerable amount of space. An excellent alternative to a sticky nav header on mobile is the ever-present hamburger menu. Although this pattern is not a universal problem-solver, it does free up a significant amount of space.

Web Design Common UX Mistake No. 2: Thin, Light Fonts

These days thin, light fonts are pervasive on numerous mobile apps and websites. With the advance of screen technology and improved rendering, a lot of designers are using them because they are elegant, clean, and trendy. However, thin typefaces can cause usability problems and therefore hamper the UX.

The goal of all text on a website is to be legible, and thin type can seriously affect readability. Not all visitors will be viewing a site on a display that renders thin type well. Some light type is challenging to read on an iPhone or an iPad with a Retina display.

Above all, text must be legible. If users can’t read the words in your app, it doesn’t matter how beautiful the typography is.

Apple Human Interface Guidelines

Apple is referring to mobile apps, but the same principle applies to websites. Legibility is mandatory, not optional for good usability. There is no point putting content on a website if it is unreadable.

Thin fonts are also a common UX mistake on mobile design.
Examples of thin, light fonts on mobile sites which negatively affect readability.

Here are some common UX mistakes to consider before using thin type:

Using Thin and Light Fonts Because It’s Trendy

Fonts should not only look good, but they should also be legible. To achieve proper contrast and legibility, designers should strive for the optimum combination in their designs: size, weight, and color.

It’s best to test the site on various devices and screen sizes to ensure all site text is legible.

Which leads us to the next common UX mistake:

Not Testing the Text Legibility on All Major Devices

Thin, light type may look good on many designers’ expensive, finely-tuned monitors, but the average user who often see our designs on cheaper, substandard displays must also be considered. The best practice is to check how fonts look on all major devices: desktop computers, laptops, tablets, and smartphones.

For example, while testing a mobile design, have participants use the site on mobile devices in daylight—real-world users will not always have perfect browsing and lighting conditions. If using a thin font on a website, there’s a simple way to adapt to mobile users: specify a thicker font on mobile for better readability.

User experience issues with websites.
Low-contrast text on an older version of the Apple Music website.

Web Design Common UX Mistake No. 3: Low-Contrast Text

Using low color contrast elements have also become trendy in modern user interface design. It grew out of a minimalist design trend because by reducing contrast in some areas, the design would appear “minimalist.” Designers couldn’t cut the complexity of information that needed to be presented, so they played with low contrast in the design.

We have already covered thin fonts, but there is an even bigger pitfall: a combination of a light typeface with low contrast that seriously impedes UX due to lousy readability. Designers should do anything they can to avoid this usability trap.

Low Text Contrast in Body Copy

Cool Springs Financial uses a thin variant of Helvetica for body text on its website. While it looks elegant and contributes to an aesthetically pleasing UI, it’s difficult to read on several platforms. While low contrast is not necessarily bad, it can have a negative impact on the usability of a website by making text hard to read.

UX trends example of low contrast text.
Small, thin, low-contrast body text on a website makes it difficult to read.

Not Testing Text Contrast

There is a nifty tool for contrast checking on the web called Colorable that will help designers set correct text contrast according to Web Content Accessibility Guidelines. Once designers know they are using the right text contrast, they can adjust other colors on their website and do a quick multiple device/user tests to make sure the text is readable.

Another high-risk trend gaining ground on the web is the “scroll hijack.” Websites that implement this trend take control of page scrolling (usually with JavaScript). When people encounter it, they no longer have control of the page scroll and are unable to predict its behavior, which can easily lead to confusion and frustration. It’s a risky experiment that could hurt website usability and at worst, induce “computer rage.”

Some websites can get away with scroll hijacking, but that doesn’t mean everybody can. For example, many web designers follow Apple’s sites with scroll hijacking, parallax effects, and high-resolution images of various products. Apple has its target market, a unique concept, and exclusive content for their website. Since every site has unique problems, it also must have unique solutions tailored to those problems.

Not Testing with Real-World Users

When borrowing trendy ideas or UI patterns, it’s best to test the prototype of a website on real-world users to avoid UX issues. Simple usability testing will reveal whether the implementation of a scroll hijack, for example, is feasible or not. Without testing, designers have no way of knowing if scroll hijacking will work, and making assumptions is often costly.

Common UX problems.
Tumblr scroll hijacks its website and that could prove to be a common UX mistake.

Tumblr, a popular personal blogging site, uses scroll hijacking on their homepage. While doing so could be risky, it’s safe to assume they know their target audience well and the cool, hip user experience they want to present. When site visitors start to scroll, the scroll is hijacked, and people are taken to the next section.

The long scroll page is broken into several sections which are distinguishable by a heavy dose of saturated colors and prominent indicator dots on the left side of the window. As a result, Tumblr’s homepage feels like a big vertical carousel visitors have control over, rather than an unpleasant, experimental website with a mind of its own.

Another common UX mistake in web design scroll hijacking that doesn't work.
Some websites can frustrate visitors with scroll hijacking that seems to be stuck and people can’t scroll pages, as on Bryter.

Web Design Common UX Mistake No. 5: Carousels

Carousels—a slideshow for rotating through a variety of content—are very common on the web, especially on landing pages and homepages. While they can be useful, they have numerous usability issues and therefore qualify as another common UX mistake. According to the Nielsen Norman Group: “people often immediately scroll past these large images and miss all of the content within them.” It could negatively impact UX as visitors may not see valuable content in some of the rotating slides.

Bad UX examples for image carousels on websites.
Auto-forwarding carousels are a bad idea—especially if they contain text for people to read—because site visitors often have no control over the timing.

Website Carousels May Not Provide Value for Users

If done right, a carousel can engage users with large striking images. The trouble is, carousels often don’t add any additional value but are simply there for decoration and only included because everybody else is using them. A way to test if a site carousel makes sense: write down three benefits a carousel provides for the visitor. If three meaningful benefits can’t be found, it doesn’t add any value.

The previous and next Arrows Have Low Discoverability

Important information in a website carousel could remain hidden if the next and previous arrows are not discoverable. The controls should also be tap-compatible for mobile.

Often there are no arrows to control the carousel; only the slide indicator dots are included to advance the slides. However, they are often low contrast, have low discoverability, and lack a large enough clickable or tappable area. The small clickable targets may lead to poor UX, a frustrated website visitor, and a quick exit from the website.

For example, the Floresta Longo Foundation website has a rotating carousel of images on its homepage. It’s set to autoplay and rotates through five photographs. The previous and next arrows, however, are small and transparent, which makes them hard to spot and challenging to click. There are no indicators for the slide visitors are on, and no labels to signify what the images represent. The images are not links and act as pure decoration. While this type of carousel may hold some value for engaging the visitor, overall it leaves a lot to be desired.

Websites with bad UX and sticky navigation UX.
No slide indicator dots and barely visible next/prev arrows are another common UX mistake with website carousels.


Web design trends, if not considered carefully and implemented with caution, could lead to several common UX mistakes. UX designers should use their best judgment and not be afraid to innovate, but to ensure great website usability it would serve them well to test their design thoroughly with real-world users.

In the crazy profusion of web design trends, things in vogue come and go. Amid this chaos, the balanced use of aesthetics, efficiency, and usability plays a significant role in distinguishing the UX trends that have proved to be the strongest and garnered the most user acceptance.

Web designers can come up with the coolest color scheme, the fanciest scrolling animation, or the most fantastic parallax effects, but if the human interaction suffers as a result, the UX will be poor, and people will quickly move on. Another site is just a click away.

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Further reading on the Toptal Design Blog: