Successful online services like marketing and e-commerce websites rely on exceptional customer experiences. As a front-end developer, it’s your job to create flawless layouts, so your customer can complete necessary actions (like submit a sign-up form or purchase a Christmas gift). As you probably know, layout issues can cause users to distrust your website, so you’ll want to fix them up ASAP. These are some of the most common front-end mistakes that cause layout problems on websites, using examples from our website, Raygun.com (in a test environment, of course!).