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Advanced CSS and Sass: Flexbox, Grid, Animations and More!

The most advanced and modern CSS course on the internet: master flexbox, CSS Grid, responsive design, and so much more.
(36,338 reviews)
167,359 students
Created by


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Platform: Udemy
Video: 28h 9m
Language: English
Next start: On Demand

Table of contents


Have you been coding CSS for some time, but want to take your game to the next level? Do you feel confused with CSS jargon like inheritance, specificity, or the cascade?
What if there was one resource, one place, where you could learn all the advanced and modern CSS techniques and properties you’ve been reading about?
Good news: there is!
Welcome to “Advanced CSS and Sass”, the most advanced, the most modern, and the most complete CSS course on the internet. It’s everything you want in an advanced CSS course, and more.
You will learn complex CSS animations, advanced responsive design techniques, flexbox layouts, Sass, CSS architecture, fundamental CSS concepts, and so much more.
Like in all my courses, you will build beautiful and carefully designed projects, that will make you proud of yourself and leave you ready to build complex projects on your own.
After finishing this course, you will:
1) Be up to speed with the most modern and advanced CSS properties and techniques;
2) Have mastered the cutting-edge layout technologies Flexbox and CSS Grid;
3) Be ready to build responsive layouts for all kinds of devices and situations;
4) Truly understand how CSS works behind the scenes;
5) Be able to architect large CSS codebases for reusability and maintainability using Sass.
Please note that this course is NOT for absolute beginners, so you should already be at an intermediate level in HTML and CSS (please check out my other course if that’s not the case).
This course is massive, coming in at 28+ hours. Here is exactly what you will learn:
•Tons of modern cutting-edge CSS techniques to create stunning designs and effects: clip-path, background-clip, mask-image, background-blend-mode, shape-outside, filter, backdrop-filter, object-fit, transform, column-count, hyphens, perspective, calc() and custom CSS properties;
•Advanced CSS animations with @keyframes, animation, and transition;
•Advanced CSS selectors, pseudo-classes, and pseudo-elements required for modern CSS development;
•How CSS works behind the scenes: the cascade, specificity, inheritance, value processing, the visual formatting model, the box model, box types, positioning schemes, and stacking contexts;
•CSS architecture: The 7-1 rule, component-based design, the BEM methodology, writing reusable, maintainable, and scalable code;
•Introduction to Sass: variables, nesting, partials, imports, mixins, functions, extends, and more;
•Using Sass in real-world projects: setting global variables, building for reusability, architecting CSS, and managing media queries;
•The NPM ecosystem: setting up a development process to compile Sass and automatic browser reload, and creating a build process to concatenate, prefix, and compress CSS files;
•Modern responsive design: fluid grids, layout types, flexible images, using media queries to test for different screen widths, pixel densities, and touch capabilities;
•Advanced responsive design workflows: mobile-first vs desktop-first strategies, selecting breakpoints, em vs rem units and feature queries to test for browser support;
•Responsive images in HTML and CSS for faster pageloads: resolution switching, density switching, art direction;
•SVG images in HTML and CSS: how and why to use SVG, generating SVG sprites, changing SVG colors in CSS and best practices;
•Videos in HTML and CSS: building a background video effect;
•Flexbox layouts: main concepts, introduction to both flex container and flex item-specific properties, advanced positioning techniques applied to a huge real-world project;
•CSS Grid layouts: main concepts, CSS grid vs flexbox, and layout techniques applied to a real-world project. This part alone could be an entire course!
Why should you take this course?
So you saw that the course is absolutely full-packed with content. But maybe you’re still not sure if you should actually learn advanced CSS?
That’s probably because CSS is so easy to get started with. In fact, most developers highly underestimate the importance and power of CSS. But nothing could be further away from the truth!
CSS is what makes our design come to life. And there is so much we can do with it! Mastering advanced techniques like flexbox, CSS grid, and animations, will give you an edge over many CSS developers out there who still use outdated methods.
Plus, CSS can become a real nightmare when you try to master it, and when you have to maintain large projects. So having a good grasp on fundamental concepts is an absolute must for any serious front-end developer.
And this course will help you with all that!
So, should you take this course? The answer is most likely a big YES!
And I packed so much content into this course, that no matter if you’re just starting out, or if you’re already an experienced front-end developer, there is definitely gonna be something for you in this course.
And this is what you get by signing up today:
•28h of Up-to-date HD-quality videos, that are easy to search and reference (great for Udemy Business students)
•Professional English captions (not the auto-generated ones)
•Downloadable design assets + starter code and final code for each section
•Downloadable slides for theory videos (not boring, I promise!)
•Free support in the course Q&A
•Lots of small challenges are included in the videos so you can track your progress.
If you’re still with me at this point, then please watch the promo video to take a look at the course projects, and I promise you will be amazed 🙂
After that, I hope to welcome you as a new student in my course. I’m sure you’re gonna love it!

You will learn

✓ Tons of modern CSS techniques to create stunning designs and effects
✓ Advanced CSS animations with @keyframes, animation and transition
✓ How CSS works behind the scenes: the cascade, specificity, inheritance, etc.
✓ CSS architecture: component-based design, BEM, writing reusable code, etc.
✓ Flexbox layouts: build a huge real-world project with flexbox
✓ CSS Grid layouts: build a huge real-world project with CSS Grid
✓ Using Sass in real-world projects: global variables, architecting CSS, managing media queries, etc.
✓ Advanced responsive design: media queries, mobile-first vs desktop-first, em vs rem units, etc.
✓ Responsive images in HTML and CSS for faster pageloads
✓ SVG images and videos in HTML and CSS: build a background video effect
✓ The NPM ecosystem: development workflows and building processes
✓ Get friendly and fast support in the course Q&A
✓ Downloadable lectures, code and design assets for all projects


• This not a beginner course — You should be confident in coding HTML and CSS before taking the course
• Any computer and OS will work — Windows, macOS or Linux
• There is no need for any paid software — The text editor you already have works just fine

This course is for

• CSS developers who want to update their CSS skills to the most modern level
• CSS developers who want to expand their toolset to animations, flexbox, Sass, NPM, SVG, and much more
• Front-end developers who want to finally understand how CSS works behind the scenes
• In general: anyone who wants to truly master CSS!
Web Developer, Designer, and Teacher
Hi, I’m Jonas! I have been identified as one of Udemy’s Top Instructors and all my premium courses have earned the best-selling status for outstanding performance and student satisfaction.
I’m a full-stack web developer and designer with a passion for building beautiful things from scratch. I’ve been building websites and apps since 2010 and also have a Master’s degree in Engineering.
I discovered my passion for teaching and helping others by sharing all I knew when I was in college, and that passion brought me to Udemy in 2015.
Here, in all my courses, what students love the most is that I take the time to explain every concept in a way that everyone can easily understand.
So, do you want to learn how to build awesome websites with modern HTML and CSS?
Looking for a complete JavaScript course that takes you from zero to an advanced developer?
Or maybe you want to build modern and fast back-end applications with Node.js?
Then don’t waste your time with random tutorials or incomplete youtube videos. All my courses are easy-to-follow, all-in-one packages that will take your skills to the next level.
These courses are exactly the courses I wish I had when I was first getting into web development!
So see for yourself, enroll in one of my courses (or all of them :D) and join 1,000,000+ happy students today.
Browse all courses by on Coursemarks.
Platform: Udemy
Video: 28h 9m
Language: English
Next start: On Demand

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