Simon Köhler articles - 26 total
All the good Domain Names are Gone..?!
It doesn't seem that long to me, but I registered the first domain (cyrcus.com) in 2002 and started...
Stop the Invasion of Fake Followers
Over the past few weeks I've been getting more and more followers on DEV.TO out of the blue. First I...
4 Expert Tips: How to work with Bootstrap like a Pro
Some love it, some hate it. Working with a framework is not everyone's cup of tea. The Bootstrap...
Twitter X Logo for Bootstrap Icons
I just needed the new Twitter X Logo now for a project that uses the Bootstrap Icon Library. So I...
UPDATED: Bootstrap 5.3.0 Navbar Multi Level and Mega Menu with Dark Theme!
I have updated my famous (over 30.000 views) Bootstrap Multi-Level Navbar codepen, so that everybody...
Simple Bootstrap Lightbox
Just a simple lightbox with Bootstrap that uses Animate.css for image animations, and imagesLoaded to...
Beautiful Masonry Gallery with Bootstrap and Unsplash Random Photos
This beautiful gallery combines the Bootstrap framework with Masonry, Animate.css and random photos...
MASK.CSS - Mask images and DIVs with ease
The other day I needed some vector shapes to mask images for a theme project. First I played around...
UPDATED: Bootstrap 5.1.1 Navbar Multi Level and Mega Menu
Advanced Bootstrap 5 Navbar component with multi-level menu, megamenu, animated hamburger button and...
Sign Up Form like Instagram with Bootstrap 5.1.0
A simple example of a sign-up form similar to Instagram's sign-up form using Bootstrap 5, which...
Video Player Interface for Bootstrap 5
Since I'm currently working on a project that requires a custom video player for Bootstrap, I decided...
Blurry image backgrounds like on Instagram
A JavaScript/CSS prototype to automatically generate blurred background images from the image source...
UPDATED: Bootstrap v5.0.2 Navbar with Multi-Level and Mega Menu
In February 2021, I published this article: "Bootstrap v5 Navbar Component with Multi-Level and Mega...
JavaScript Editor from Scratch to live-edit CSS Values in your Browser
Hello friends of JavaScript and CSS! Today I needed a small editor that allows me to conveniently...
JavaScript: Use the first Option of a Select as a Label
Sometimes input or select elements are used in forms without <label> tag. When the user selects...
JavaScript Snippet to dynamically adjust text color of HTML Selects
If you use a HTML form with placeholder texts, you will notice that select dropdowns always have a da...
Always try to focus on what you really Want to do, even if it takes Years
Simon Köhler @koehlersimon...
Open Source Pays Off for Developers and Supporters!
The last 15 years I worked more or less every day at least 10 minutes with TYPO3, the Open Source Ent...
DEV.TO is great, you wanna know why?
First, happy Monday to all around the world! I want to clarify that I am not part of dev.to, but an i...
Bootstrap v5 Navbar Component with Multi-Level and Mega Menu
Do you need more than only 2 Levels for your Bootstrap Navbar? Or you find the original hamburger...
Random Stars Animation with JavaScript and CSS
I created this pen a long time ago when a client wanted this type of animation for a project. Maybe s...
If you know jQuery Focuspoint you will like Vanilla Focus
I liked using the jQuery Focuspoint plugin when I was still using jQuery. But since I've been working...
5 expert tips to run TYPO3 CMS more sustainably
At this point I'll try to show 5 important new tips I've learned myself while working on client proje...
10 essential Tips for aspiring Freelancers
Are you an aspiring Freelancer or looking to become one? After a total of over 10 years as a freelanc...
Working and living as a Freelancer in Panama
Since I'm new here, I'm using this post to share a bit about my 8-year career as a TYPO3 freelancer....
Yeah, TYPO3 11.1 has been released today. I've tried it!
Without a doubt, the new multi-factor authentication in TYPO3 is the most popular new feature. But I...