CSS - The Complete Guide 2025 (incl. Flexbox, Grid & Sass)
What you'll learn
- Learn why CSS is amazing, not something to be afraid of!
- Use basic as well as advanced CSS features
- Flexbox, grid, animations, transitions, fonts, media queries and much more - it's all included!
- Understand the concepts and theory behind CSS and certain CSS features
- Build beautiful websites which don't just contain great content but also look good
Requirements
- You should know the very basics about HTML and web development in general
- NO advanced HTML or web development knowledge is required though
- NO CSS knowledge is required at all! You'll learn it all in this course!
Description
Join this bestselling CSS course to learn all about CSS from the ground up, in great depth!
CSS ( Cascading Style Sheets) is a "programming language" you use to turn your HTML pages into real beautiful websites.
This course covers it all - we start at the very basics (What is CSS? How does it work? How do you use it)? and gradually dive in deeper and deeper. And we do this by showing both practical examples as well as the theory behind it.
Getting started with CSS might look easy but there actually is a lot of depth to CSS - hence this course provides different "Tracks" or "Entry points" to exactly meet your demands and reflect you current knowledge level:
The Basics Track: Start from scratch, learn CSS from the ground up. You start with lecture 1 and simply follow through to the end.
The Advanced Track: You already know the CSS basics, you know what selectors are and how it works but you want to dive in deeper and learn some advanced features and usages.
The Expert Track: You got the advanced knowledge, too, but you want to dive into things like Flexbox, CSS Grid, CSS Variables or Sass. This track is for you.
Of course this course offers the theory and practical examples - we'll build an entire real course project throughout the course - but there also are multiple assignments, quizzes and challenges for you to practice individual concepts taught throughout the course.
Talking about the course project - we'll build the frontend (no backend) of a fictional web hosting company. We'll have a starting screen which has different sections, we got a responsive design with an animated side-drawer, we got modals and forms and in general we got a lot of CSS animations, font styles and more!
Here's what's inside the course in detail - this is all also applied to the mentioned course project:
The basics about selectors, combinators and how you set up styling rules in general
Properties, values and decalarations
How specifity and inheritance work and why it's called "Cascading" Style Sheets
Important theoretical concepts like the "Box Model"
How the default position of elements can be changed
Styling backgrounds (e.g. gradients) and images
Which units and dimensions you typically use in CSS (px, rem, % and more)
How JavaScript and CSS interact
Responsive design and what "Mobile First" means
Styling forms and form inputs
Working with text, fonts and text styles
Flexbox! How it works and how to use it
Using the CSS Grid and how it differs from Flexbox
Transforming and animating HTML elements with the help of CSS
Writing future-proof CSS with features like CSS variables or best-practice class names
Using Sass and what it actually is all about
Is this course for you?
It's for you if
you started with learning web development and you want to build more beautiful websites
you already know CSS but want to dive deeper
you're using CSS in a trial-and-error manner and want to change this (you should!)
You might come back later if
you're an absolute CSS pro and you know the CSS working group drafts by heart
you're a backend-only developer (Node, PHP, NO HTML or frontend JavaScript)
you're a total newcomer to web development and you don't know the basics about HTML
If that sounds good to you, we'd be more than happy to welcome you in this course!
Who this course is for:
- Anyone who wants to learn CSS for the first time or wants to sharpen his or her CSS skills
- Anyone who's excited to learn about the latest CSS features like Flexbox, CSS Grid or CSS Variables
- Anyone who knows CSS but wants to dive deeper
Featured review
Instructors
- 4.6 Instructor Rating
- 790,524 Reviews
- 3,291,153 Students
- 48 Courses
Bundling the courses and know how of successful instructors, Academind strives to deliver high quality online education.
Online Education, Real-Life Success - that's what Academind stands for. Learn topics like web development, data analyses and more in a fun and engaging way.
We've taught more than 3,000,000 students on a broad variety of topics. We'd love to teach you as well! :)
Keep learning!
- 4.7 Instructor Rating
- 1,214,729 Reviews
- 3,328,951 Students
- 64 Courses
Experience as (Web) Developer
Starting out at the age of 12 I never stopped learning new programming skills and languages. Early I started creating websites for friends and just for fun as well. Besides web development I also explored Python and other non-web-only languages. This passion has since lasted and lead to my decision of working as a freelance web developer and consultant. The success and fun I have in this job is immense and really keeps that passion burningly alive.
Starting web development on the backend (PHP with Laravel, NodeJS, Python) I also became more and more of a frontend developer using modern frameworks like React, Angular or VueJS in a lot of projects. I love both worlds nowadays!
I also build full-stack applications and acquired expert DevOps and cloud computing knowledge - proven by the many AWS certifications I hold (incl. the top-level Solutions Architect Professional certification).
As a self-taught developer I had the chance to broaden my horizon by studying Business Administration where I hold a Master's degree. That enabled me to work in a major strategy consultancy as well as a bank. While learning, that I enjoy development more than these fields, the time in this sector greatly improved my overall experience and skills.
Experience as Instructor
As a self-taught professional I really know the hard parts and the difficult topics when learning new or improving on already-known languages. This background and experience enables me to focus on the most relevant key concepts and topics. My track record of many 5-star rated courses and more than 2,000,000 students on Udemy is the best proof for that.
Whether working as development instructor or teaching Business Administration I always received great feedback. The most rewarding experience is to see how people find new, better jobs, build awesome web applications, acquire amazing projects or simply enjoy their hobby with the help of my content.
Together with Manuel Lorenz, I founded Academind to offer the best possible learning experience to our more than 2,000,000 students.
- 4.6 Instructor Rating
- 151,956 Reviews
- 1,481,117 Students
- 12 Courses
Having worked as a business analyst in both a major consultancy and an investment bank, I always found myself confronted with both various and complex problem sets and challenging client demands. The rapid development of technology and business requirements forces everyone to constantly adapt and to continue learning.
Being an early adopter of new and quickly evolving tools, I always enjoyed both learning these tools and passing on my knowledge to my colleagues and fellow students.
Since working as a business analyst implies a high affinity to programming, I also enjoy working as a web developer. It's that combination of self-taught knowledge and its application in a highly competitive consulting environment for various clients which gave me the ability to evaluate solutions from an industry perspective as well as from a learner's perspective. The latter also allows me to identify the pain points students might hit when learning these tools.
Since I always found it hard to find high quality, understandable and comprehensive learning materials, I decided to create such materials on my own. Together with Maximilian Schwarzmüller I founded Academind to offer the best possible learning experience on web development and data science to our more than 2.000,000 students.