Logo - Albert Walicki

Problems and Solutions

Short solutions for real-life frontend problems, divided into a few categories.

JAVASCRIPT

How to change element's class with Javascript?

Short cheatsheet for adding, removing, and toggling CSS classes in vanilla javascript. You no longer have to remember it!

CSS

Extra space below image

One of the most common problems that almost every junior frontend developer has is extra space below the image. Let's learn how to fix it with CSS

HTML

How to create a tooltip in HTML and CSS?

A short tutorial on creating an HTML and CSS tooltip without a single line of javascript. All you need to know is data-atributes

Logo - Albert Walicki

Hello, i’m Albert Walicki. i’m a frontend developer and cofounder of development & design agency Hype4 and education platform Hype4 Academy. I wrote a book for Junior Frontend developers called Frontend Unicorn.

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