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Article Archives

Learning Canvas: Making a Snake Game

In this tutorial we'll learn the basics of the canvas element. How to draw to it, create loops which redraw it allowing animation, and in the end, wind up with a basic playable "Snake" game.
June 23, 201133 comments

Sprite Cow

Making a really good CSS sprite image usually isn't trivial work. There are all kinds of tools to help with it. My favorite of them has been SpriteMe. I describe my typical workflow for using that here. Sprite …

June 21, 2011

WebKit CSS Reflections

Tons of examples and information from Joshua Johnson.…

June 19, 2011

Screen Resolution ≠ Browser Window

The only statistic you get in most web analytics software is screen resolution. But there is a pretty good chance you just read this sentence in a browser that isn't open to the full size of your monitor. If you are looking at size analytics for you website, browser size is far more relevant. In this article we figure out how to get that data, and then look at some of the results gathered from css-tricks.com.
June 17, 201159 comments

Dropp

My buddies at Sense Labs just released a really cool iPhone app called Dropp. Allows you to leave location-based messages anywhere on Earth that people receive when they visit that location. Leave them privately for your friends, or publicly. Such …

June 16, 2011

Useful :nth-child Recipes

I get a little giddy when I come across perfect uses for :nth-child or :nth-of-type (read about the difference). The better you understand them, the more css nerdgasms you get to have!
June 16, 201138 comments

CSS Lint

New tool by Nicholas Zakas and Nicole Sullivan to analyze your CSS and tell you that you are doing a bad job. It's an amazing tool to help you understand how to write better CSS. To nitpick, I'd say that …

June 15, 2011

Just One Of Those Things You Need To Understand About JavaScript

Ever since I've published the article Dynamic Page / Replacing Content, I've gotten quite a few emails that come in from people who are trying to use it in conjunction with some other JavaScript stuff and having trouble. Most …

June 15, 201127 comments

The Stats That Matter: Your Site’s Stats

Just because I thought it was interesting, I shared this on Twitter this morning:

95% of traffic to CSS-Tricks has a screen resolution of larger than 1024x768.

And I got all kinds of responses like: That's such a skewed statistic!!!

June 14, 201135 comments

New at Wufoo

Couple of things I wanted to share from Wufoo land.

Developers: We've released the Wufoo Form Embed Kit, which is a way you can build form embedding integration with other apps easily. As in, you don't have to …

June 14, 20114 comments

A Whole Bunch of Amazing Stuff Pseudo Elements Can Do

It's pretty amazing what you can do with the pseudo elements :before and :after. For every element on the page, you get two more free ones that you can do just about anything another HTML element could do. They unlock a whole lot of interesting design possibilities without negatively affecting the semantics of your markup. Here's a whole bunch of those amazing things. A roundup, if you will.
June 13, 201156 comments

Art and the Web

My buddy Nick Pettit is writing a book called Art and the Web which is going to cover the fundamentals of art (well some of the big ones anyway: Line, Shape, and Form) and how they relate to the web. …

June 8, 2011

Fluid Width YouTube Videos

YouTube now gives you iframe code for embedding videos hosted there onto your own page. This article offers a jQuery JavaScript based solution for making them work in fluid width environments, which they inherently do not.
June 8, 201156 comments

Color Animate Any Shape with a Knockout PNG

Using a graphic where the solid parts match the background of a site and the transparent parts make the shape, we can let a background color bleed through. This allows us to set that color through CSS, and do any fancy thing CSS can do, like say animate that color.
June 7, 201123 comments

Online Conference: CSS Summit

Tuesday/Wednesday July 26/27, 2011 is the CSS Summit, an online conference all about CSS. I'll be talking the second day. Super hot lineup! Use the code 20COYIER to save 20% on any type of ticket.…

June 7, 2011

Recent Bits

I was out last week getting my bluegrass festival thing on. I'm just catching up with the ol' internet and thought I'd recap the interesting bits:

  • Modernizr 2 is out and it has new stuff like vendor prefix testing, media
June 6, 201115 comments

In IE, iFrames on Pages in Quirks Mode Also in Quirks Mode

Just wanted to make sure that this was documented. Here's what I think the most important lesson is:

If you are creating a page using HTML5 and you think there is some reasonable chance that someone may embed this page

May 26, 201134 comments

Styling List Markers

Have you ever tried to style the numbers in an ordered list? You end up doing dumb stuff like wrapping the insides in spans, styling the list items, then removing that styling with the span. Or using background images in …

May 25, 2011

Creating a Body Border

A border that goes all the way around the browser window and stays there when you scroll. In this article we cover a few different techniques to get it done, from the deepest browser support to the most progressive.
May 25, 201182 comments

Animated 3D Objects Without SVG or Canvas

One of the ways you can make a triangle with CSS is by using a 45-degree angle gradient on an element that goes from from colored to transparent with an hard split at the half-way point. Then you can use …

May 24, 2011

Choice & Value Pair

Let's say in a form you need to allow the user to select a single unique choice. That's the territory of either a select dropdown menu or a group of radio buttons. Now let's say there is direct follow-up question …

May 24, 201123 comments

When Using !important is The Right Choice

Using !important rules can be a dangerous road to start going down, but they exist for a reason. There are some good use cases which we'll cover here.
May 22, 201155 comments

Prevent White Flash While iFrame Loads

How to prevent an iframe from flashing white while the page is loading. An ugly problem when the background of your site is anything other than white.
May 17, 201134 comments

Full Browser Width Bars

Yet another useful thing that pseudo elements can do for us: allow us to create full browser width header bars without using internal non-semantic wrappers.
May 16, 201188 comments

Good Idea: “What is this charge on my credit card?” Page

If you charge for something online, having a dedicated page on your site where you explain what the charge is on a credit card statement is a good idea. You can point people to this page via a short URL right on the credit card statement.
May 15, 201111 comments

RewardJS

Fix a bug. Get a prize.

A site to incentivize helping out on open source JavaScript projects. Every single day there is a prize that someone earns through sheer number of bug fixes closed. Also weekly and monthly prizes on …

May 11, 2011

Personal Blogs of Web People That I Like To Read

My favorite blogs are personal blogs of one person. I like it when blogs "have a voice" and personal blogs can't help but have that since all the writing is by the same person. I read a bunch of them and I thought I'd share. Below is a big ol' list that are specifically people that blog, generally, about web stuff - be it design, development, entrepreneurship, typography, business, illustration, whatever. You probably know a lot of them. Maybe some of them you don't.
May 11, 201189 comments

Upcoming Talks

I'm talking at a bunch of events coming up this year. Come to them!
May 10, 201112 comments

FitText

FitText makes font-sizes flexible. Use this plugin on your fluid or responsive layout to achieve scalable headlines that fill the width of a parent element.

Super simple, super nice effect, super practical jQuery plugin by Dave Rupert.

You need to …

May 10, 2011

CSS Regions Demos

Adobe has put together some pretty compelling demos of "CSS Regions." Download the package and run the included "Mini Browser" to see them. You define shapes (kinda like an image map) in which content flows. If needed, you define how …

May 10, 2011

Masonry CSS

Simple and damn clever idea by Radu Chelariu. Use multiple columns and inline-block elements to create that "masonry" / staggered block layout that is hugely difficult to do otherwise. …

May 9, 2011

Case Study: jQuery Fixer Upper

We'll look at some jQuery code that a CSS-Tricks reader posted in the forums. We'll suggest ways to improve the code to make it more efficient and more extensible. We'll also make some guesses about the HTML that it goes with and discuss improvements there.
May 8, 201155 comments

Window Inactive Styling

Using some non-standard pseudo selectors, you can change the styling of things when the browser window is inactive. The only "practical" use right now is text selection colors, which automatically do this unless you override it. But we'll fix that!
May 6, 201113 comments

Outer Border Radius Tabs

Imagine a real-life tabbed folder. The tabs on those aren't only rounded at the top of the tab, but they also connected to the folder with a rounded edge. Top corners, easy, just border-radius. Bottom corners, not so easy. …

May 5, 2011

Border Radius on Images

If you ever tried to use border-radius on <img>'s, you know that it doesn't always work (even if the browser supports that CSS3 property, like Firefox 3 and Opera 11). The root of it is that the image is …

May 5, 2011

Restart CSS Animation

With CSS animations (ala @keyframes) it's not as easy as you might think to "restart" it.

Let's say you set it to run once:

.run-animation { -webkit-animation: my-fancy-animation 5s 1; -moz-animation: my-fancy-animation 5s 1; animation: my-fancy-animation 5s 1; }
May 5, 201130 comments

Browser Support for :before/:after Pseudo Elements

The exact (pretty much) browser support levels for these style of pseudo elements. It's pretty darn deep, folks, and you can do really cool things with them while keeping your markup clean.
May 4, 201132 comments

The Net Awards Nominations Open

The Net Awards are now open for nominations. They are web industries longest running and biggest awards as far as I know. I think it's nice to have people and teams get recognized for outstanding work.

These are the …

May 3, 201111 comments

Font Sizing with REM

One of the problems with using "em" as font sizes is that they cascade, so you are forever writing rules that select nested elements to reset them back to 1em; CSS3 now has rem ("root em") to prevent that issue. …

May 2, 2011

Custom Scrollbars in WebKit

You can customize scrollbars in WebKit browsers. Here's the CSS you need to know about to get it done, with examples.
May 2, 201170 comments

Twitter Account(s)

The point: on Twitter I'm @chriscoyier. If you prefer a stream of links from CSS-Tricks only, you can follow @real_css_tricks.
April 29, 201124 comments

Responsive Data Tables

Tables of data can only squish horizontally so far, so they can be a pain to browse on small screens (like mobile devices) where you may need to scroll both horizontally and vertically to browse the information at readable text sizes. We'll explore a CSS-based possible-solution to this issue.
April 27, 201172 comments

New Poll: Working Environment

The new poll (in the sidebar) asks:

In what environment do you primarily work?

I've worked from home for a lot of years but that will soon be changing. I'm interested to know the environment readers of this site work …

April 25, 201167 comments

CSS Gradients from Image

Nicole Sullivan thinks "wouldn't it be a nice if there was a tool to convert an image of a gradient into CSS code?" The community responds with some newly-created tools to do just that. I couldn't get either of the …

April 25, 2011

CSS Stress Testing

Bookmarklet from Andy Edinborough which analyzes your page by removing class names one by one from all elements and testing the pages scroll performance. In other words, if you are having trouble scrolling a page and suspect it's fancy CSS3 …

April 24, 2011

Poll Results for Conditional Comments

How did people respond when asked if they wanted the power to serve content conditionally to any browser? The results are pretty interesting...
April 22, 201127 comments

Fun With Blurred Text

We'll cover how to blur text with CSS3 and do it safely by feature-detecting first. Then we'll do a bunch of experiments with individual letter blurring and also some clever jQuery which gives us deeper access into specific values of a text-shadow.
April 21, 201135 comments

CSS vs CSS3

Trent Walton designs a website then codes it up two ways: new school CSS3, and old school image slicing with no CSS3. Going new school meant 1) he could do it faster 2) the page size was smaller 3) less …

April 21, 2011

Micro Clearfix

Nicolas Gallagher challenges some old assumptions about what's needed to make the pseudo element style "clearfix" work. …

April 21, 2011

39 Box Shadows, No Good Reason

Except it's the best reason of all: HOT CSS NERD ACTION.…

April 21, 2011

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