🔥 Top Posts
Introduction to Clipping Using clip-path in CSS
Learn how to transform the shape of images, SVGs and just about anything using the clip-path property.
Pure-CSS Parallax Scrolling Effect
CSS Grid Layout: The Fr Unit
CSS Grid Layout bring us a new unit, a fraction unit (Fr). See how it works.
— Sorry to interrupt this program! 📺
Given the current situation with COVID-19, times are hard for most of us, but if you're stuck at home you can perhaps use that extra time to work on your web dev skills. Wes put all of his courses at 50% off to help out with the current challenge we're facing.
Plus, these are affiliate links, so if you purchase a course you help Alligator.io continue to exist at the same time! 🙏
CSS System Font Stack Reference
A reference to the sans serif system font stack you can use in your CSS to have pretty and easy to read text without having to download extra fonts.
Styling Scrollbars with CSS: The Modern Way to Style Scrollbars
Let's look at how we can now easily style browser scrollbars using only CSS, thanks in large part to a new W3C spec proposal: CSS Scrollbars.
Using the CSS line-height Property to Improve Readability
Quickly learn all about the CSS line-height property, the values it can take and some best practices that result in text that's easy to read.
How to Use the CSS :root Pseudo-Class Selector
In CSS, the :root pseudo-class is similar to the html selector, but with a subtle difference. Learn all about it in this post.
When Should You Use the CSS !important Rule?
The !important rule in CSS is powerful, but its effects can surprise you. Let's go over it in this post.
The Mighty CSS z-index Property
In CSS, z-index is a property that allows you to access the 3rd dimension and is most often used to ensure an element appears under or on top of other elements.
Introduction to CSS Counters
Learn how to use CSS counters to numerically label page headings and get display the total number of rows in a table.
Tricks for Using CSS translateZ() and perspective()
Here are some things you might not know about the CSS translateZ() and perspective() functions for 3D translations.
Comparing CSS Pseudo-Classes: nth-child vs nth-of-type
Learn the the difference between the CSS pseudo-classes nth-child and nth-of-type. Examples of when to use each will be explored too.
CSS Hex Code Colors with Alpha Values
Learn how to use hex codes in CSS and change the transparency of the color by introducing an alpha value. An intro to hexadecimal numbers is included too.
Understanding Specificity in CSS
Learn the basics of specificity in CSS and why you should never need !important.
Change Text Case with CSS's text-transform Property
CSS will-change Property: When and When Not to Use It
Understand the will-change property in CSS and how it can be use to make your animations and transitions more performant by giving hints to the browser.
Using Google Fonts in Your Web Pages
This article will teach you how to make use of the thousands of fonts Google provides for free through Google Fonts on your website.
Improve Responsiveness with flex-wrap in CSS
Learn how to improve the responsiveness of your app's layout using flex-wrap or flex-flow. For anyone new to flexbox, there's a quick intro too!
CSS Basics: Using :hover and :active Pseudo-Classes
Get a quick intro on pseudo-classes and learn how to style elements in CSS with the :hover and :active pseudo-classes.
Introduction to Tailwind CSS
Explore Tailwind CSS, a popular utility-based CSS library that's easy to learn, customizable and responsive.
CSS Units Explained
Learn all the options for CSS units and when to use them. Plus, you'll learn the difference between absolute and relative units.
Back to Basics: CSS Transitions for Simple Animations
CSS isn't just for creating static designs. Make your designs come to life with CSS transitions!
Practical Guide to Using CSS Position Relative & Absolute
Learn practical tips for using position: relative and position: absolute in CSS to create engaging visual elements.
Understanding CSS Float
Learn how to use CSS float positioning, as well as some of the pitfalls when using it for layouts on the web.
rem vs em Units in CSS
A brief look at perhaps the two most popular relative units in CSS: em and rem. From this post you'll finally grasp what the exact difference is between them.
Getting Started with Animate.css
Let's explore how to use Animate.css, a library that makes it very easy to create fun CSS animations without all the usual hassle.
Understanding the currentColor Keyword in CSS
A super short post that tells you what the currentColor keyword is used for in CSS and how to make good use of it.
Gradient Borders and Border Images in Pure CSS
Using border images and gradients borders on any HTML element using only simple and well supported CSS properties: border-image-source & border-image-slice.
Creating a CSS Spinning Loader Animation
Here's how to build a Twitter-like CSS spinning loader animation. We also make heavy use of CSS variables, to show you how powerful they can be.
Introduction to Conic Gradients in CSS
Learn about a new type of gradient available in CSS: conic gradients. With conic gradients, it'll be easy to create graphics like pie charts with only CSS.
Control Page Scroll in CSS Using Scroll Snapping
Want more control over how a page or an element is scrolled? You're in luck, there's now a CSS module for that: CSS Scroll Snap.
Drop Caps in CSS Using first-letter & initial-letter
Learn how to style the first letter of a paragraph in CSS using the ::first-letter pseudo element selector and the initial-letter property.
Variable Fonts on the Web Using CSS
Variable fonts are a new technology where one font file can contain multiple variations of the base font. Here you'll see how to use them on the web.
CSS Media Queries: Quick Reference & Guide
CSS media queries are the most powerful way to create responsive layouts and designs on the web. Get a quick refresher with this post.
Creating Patterns Using CSS & the <css-doodle /> Web Component
Learn how to use the <css-doodle /> component to create fun and intricate patterns on the web.
CSS transform-origin Property
Learn about how to use the transform-origin property to control where an element's transform starts from.
A Look at CSS Viewport Units
Let's explore the vh, vw, vmin and vmax units and look at how it can make our designs easier to accomplish.
Making Elements Stick in CSS Using position: sticky
A quick guide on how to use the position: sticky property in CSS to make elements become static when the page is scrolled to a specified point.
CSS Tip: Multicolor & Cutout Drop Shadows
Box shadows are boring. They can only display one color. Bump things up a notch by using a pseudo-element and the CSS blur filter instead!
CSS Tip: Performant Box-Shadow Transitions
Box-shadow transitions are all the rage. The only problem is, they're slow. Here's a way to speed things up a bit.
Centering Things in CSS Using Flexbox
Flexbox may not be the solution to all of our CSS problems, but at least when it comes to centering and vertical centering of elements, it finally gives us an easy solution.
Exploring Multi-Column Layouts in CSS
Learn how to create magazine-style layouts for your pages using CSS's multi-column layout capabilities.
Implementing A Pure CSS Collapsible
In this post we'll make use of the :checked and adjacent sibling selectors to create an accessible and CSS-only collapsible.
Defining Custom Fonts in CSS With @font-face and font-display
The font-face at-rule gives a lot of flexibility to define custom fonts using CSS. Plus, the font-display property allows to control even the font loading.
Getting Fancy With Text Decoration in CSS
New text decoration properties allow us to change the color or skip over glyph descenders. Here's a quick rundown of what's possible
Magazine-Style Shapes Around Floated Elements in CSS With shape-outside
Create interesting page layouts by having text follow different shapes around floated element using the shape-outside property.
Masking Images in CSS Using the mask-image Property
A quick tutorial with examples on how to use image, gradient and SVG masks in CSS.
Apply Filters to Background Elements in CSS With backdrop-filter
A new CSS property, backdrop-filter, makes it easy to apply filters to element that are behind another element. See how to use it in this post.
The CSS :focus-within Pseudo-Class
A quick post that shows how :focus-within can be used to help style an element when one of its descendants has focus.
Minimal CSS Reset
A lightweight set of CSS reset rules to get your projects started.
Exploring Blend Modes in CSS
Learn how to use the mix-blend-mode and background-blend-mode properties to create interesting compositions with images and colors in CSS.
Styling Form Inputs in CSS With :required, :optional, :valid and invalid
Cropping Images in CSS With object-fit
The object-fit property is a welcome addition that allows to crop images so that the aspect ratio is kept.
Website Theming With CSS Custom Properties
A few quick pointers on creating a custom theme for your website or web app using CSS variables.
CSS Grid: Justification and Alignment
Learn how to align and justify your grid items using the CSS grid layout.
Say Goodbye to the Clearfix Hack With display: flow-root
Stop using the clearfix hack and replace it with a new value for the display property called flow-root.
CSS Grid: grid-gap
Create column and row gutters in your CSS grid layout with grid-gap.
Introduction to PostCSS With cssnext and cssnano
Upgrade your CSS workflow and learn how to setup PostCSS with the cssnext and cssnano plugins.
The CSS color-mod Function
CSS Colors Level 4 brings us a color-mod() function that makes it easy to modify color values.
CSS Grid: grid-auto-rows + grid-auto-columns
Control the size of auto-generated grid tracks with grid-auto-rows and grid-auto-columns.
CSS Grid: grid-auto-flow
Control how auto-generated grid tracks get placed.
CSS Grid: Holy Grail Layout
A simple holy grail layout implementation with CSS grid.
CSS Grid Layout: The Repeat Notation
Use the repeat() notation with your row or column template definitions to more easily create multiple grid tracks.
CSS Grid Layout: The Minmax Function
Use minmax() in your grid layouts to specify a range of possible sizes for your grid tracks.
CSS Grid Layout: The Span Keyword
Define start and end grid lines more easily with the span keyword by specifying how many rows or columns and item should span.
CSS Grid Layout: Named Lines
Grid items are usually placed on the grid by referring to grid lines. Things can get confusing however, and this is where named lines can help.
CSS Grid Layout: Grid Areas
Grid areas are a powerful and simple way to place grid items on the grid with some simple ascii art.
CSS Grid Layout: Introduction
A brief introduction to the next generation layout system: CSS Grid.
Styling Placeholder Text Using CSS
Here's how to style the placeholder text of inputs.
Inherit, Initial and Unset Values for CSS Properties
A quick breakdown of the inherit, initial and unset css values. Unset is the new kid on the block.
CSS vertical-align Property
A reference for the CSS vertical-align property to define how an inline element should flow compared to the rest of the inline elements around it.
Defining Animations in CSS With @keyframes
A reference for the CSS @keyframes at-rule for defining an animation cycle.
CSS pointer-events Property
A reference for the CSS pointer-events property to make it easy to define how elements should react to clicks or taps.
Reference: CSS Color Names
A reference for the CSS named colors, including named colors from CSS3 and CSS4.
Change the Mouse Cursor in CSS With the cursor Property
A reference for the CSS cursor property and the different cursors available by default. You'll also see how to define your own cursors.
CSS border-radius Property
A reference for the CSS border-radius property to make it easy to define rounded corners on any element.
Inline vs Inline-Block Display in CSS
Understand the differences in CSS for display: inline and display: inline-block.
CSS box-sizing Property
A reference for the CSS box-sizing property to make it easy to control how the box model applies on a particular element.
CSS background-size Property
A reference for the CSS background-size property and the different possible values. You'll also learn about the cover and contain keywords.
CSS background-repeat Property
A reference for the CSS background-repeat property.
CSS white-space Property
A reference for the CSS white-space property.
A CSS Selector Reference
Can't remember which selector to use? Here's an easy reference of all the CSS selectors, including those from CSS Selectors Level 3 (CSS3).
CSS background-position Property
A reference for the CSS background-position property.
The :not Pseudo-Class in CSS
Learn how to use the negation pseudo-class in CSS.
The CSS text-shadow property
A quick snippet on using the text-shadow property in CSS.
Preventing Line Breaks Using CSS
An easy way to prevent line breaks using CSS's white-space property.
Line Breaks in the CSS Content Property
Quick trick on how to add line breaks to content for the :before or :after pseudo-elements.
HTML entities in the CSS Content Property
Quick trick on how to add HTML entities to content for the :before or :after pseudo-elements.
CSS Quick Tip: :before vs ::before & :after vs ::after
Here's what the difference is between the :before and ::before pseudo-elements in CSS.
The CSS attr() Function
Use attr() in CSS to dynamically define data for the content property. Here's a quick snippet on how to do it.
Radial Gradients in CSS
A primer on CSS radial gradients. No need for image editing softwares anymore to create gradients in your designs.
Linear Gradients in CSS
A primer on CSS linear gradients. No need for image editing softwares anymore to create gradients in your designs.
The CSS :checked Pseudo-Class Selector
Use :checked in CSS to style checked radio, checkbox or option elements.
The CSS :matches() Pseudo-Class
Use :matches() in CSS to group multiple selectors together.
A Brief Intro to CSS Variables (Custom Properties)
Declare variables in pure CSS, no preprocessor needed. Also known as custom properties, they allow for more flexibility in your styles & for things like theming.
A CSS Flexbox Primer
A very basic lowdown on using CSS Flexbox. Learn about the main rules or get a quick visual refresher.
A Few Cool CSS box-shadow Examples
A few examples of nice CSS3 box-shadows. Use them in your designs today.
The CSS Box Model
If you're new to CSS, the first thing to learn is the box model. Here's a quick visual for it.
CSS Padding & Margin Shorthand Properties
A quick visual to remember how paddings and margins get applied in CSS.
CSS Filter Examples and Quick Demos
Here's a showcase with a few cool things you can easily do with CSS filters. Blur, grayscale, hue-rotate, saturate,... Oh my!
Feature Detection in CSS with @supports
Detect if certain features are supported by the visitor's browser using the new @supports rule in CSS.
CSS Attribute Selector
Quick snippet on how to select elements based on its attribute in CSS.
Change the Selected Text Color in CSS
A quick snippet of CSS to allow you to easily change a the background color and the color of selected text on a page.
CSS Animation Shorthand Property
Snippet for the CSS animation shorthand property and how it can be used to greatly simplify your animation definitions.
CSS Transition Shorthand Property
Quick snippet for the CSS transition shorthand property.
CSS Border Shorthand Property
A snippet to help you save time with the CSS border shorthand. You can define the border-width, border-style and border-color in one simple rule.
CSS Box-Shadow Shorthand Property
Shorthand snippet for CSS Box-Shadow to define the shadow offset, blur, spread and color all in one rule.
CSS Font Shorthand Property
Save time with the CSS font shorthand by defining font weight, variant, size, style, family and line height all in one rule.
CSS Background Shorthand Property
The CSS background shorthand to define the background-image, background-repeat, background-position and background-attachment all in one easy CSS rule.
Colors in CSS3
Making things colorful with CSS3. Learn about RGBA and HSLA.
The CSS calc() function
A nice little CSS function to let you calculate things.
A Curated List of CSS Resources
Here's some good resources to get started with learning CSS and our curated list of best CSS resources.
A quick reference for some of the most frequently used CSS3 properties for things such as radial gradients, columns and transitions.
CSS3: A Quick Intro
A general and quick overview of some of the features in what we call CSS3.