I started this page, which was, once, a part of my homepage. I'm a Dutch open source and open standards fanatic. My day job is that of Search Strategist at an online marketing agency called Onetomarket, where I'm, amongst other things, responsible for developing our clients' Search Marketing strategies.
My intention with this site was to create a complete CSS3 resource. Some other people joined me, and I'm very curious where this road will take us. I blog about SEO, WordPress, Analytics and webdevelopment / webdesign over at my SEO blog.
If you like to read about SEO, I'd advise you to check out the blogs of my colleagues Roy Huiskes and Nina Baumann too!
Joost de Valk
http://www.yoast.com/
-
PIECES WRITTEN BY Joost de Valk:
-
COMMENTS WRITTEN BY Joost de Valk:
-
In their defence as well: they are trying hard, IE7 is a lot better, and they have committed themselves to keep upgrading it. Posted to " A brief introduction to Opacity and RGBA " by Joost de Valk June 14th, 2006 -
hmm cool stuff :) Posted to " CSS3 for forms " by Joost de Valk June 15th, 2006
-
The funny thing is, moz invented border-radius, and the W3C added it later. Moz prefixed it, because if they didn't the W3C couldn't decide how the pref should work: it would have to work exactly like mozilla, or it would break existing content. (Thanks to Ian Hickson btw, for helping me on this small post :) ) Posted to " Why and when browsers prefix CSS3 features " by Joost de Valk June 17th, 2006
-
This works in IE6 and up too, i just found out, updated the page. Posted to " Added a preview page: text-overflow " by Joost de Valk June 18th, 2006
-
I've filed a bug for WebKit to add this, it's kinda cool stuff :) Posted to " Added a preview page: HSL color " by Joost de Valk June 19th, 2006
-
Nice pages Peter, thx! :) Posted to " Added a preview page: HSL color " by Joost de Valk June 19th, 2006
-
Hi ian, thanks for pointing this out! I added it. Posted to " Added a preview page: text-overflow " by Joost de Valk June 20th, 2006
-
Nice article Peter, once again :) Posted to " @font-face: fonts the way you want them " by Joost de Valk June 21st, 2006
-
Håkon Wium Lie, Opera's CTO actually wrote a nice article about this the other day on news.com.com. Here it is. Posted to " @font-face: fonts the way you want them " by Joost de Valk June 22nd, 2006
-
Ey David, thx for your nice comments :). We didn't forget hsla and rgba, we just put it on another page, but i'll mention it on the hsl page ;). Posted to " Listing of CSS3 Modules' Status " by Joost de Valk June 28th, 2006
-
Karl: thx! i'll update the page, any other comments? :) Posted to " Why and when browsers prefix CSS3 features " by Joost de Valk July 4th, 2006
-
I agree Emil, variables in CSS would not be wise. We don't have them in HTML do we? :) I use PHP or other languages to generate CSS most of the time, that gives me the advantages of having variables :) Posted to " Interesting Hakon Wium Lie interview " by Joost de Valk July 25th, 2006
-
I totally agree that Konqueror is quite advanced, WebKit nightlies come close though, although you do need a Mac to play with them... Posted to " CSS3 and Konqueror " by Joost de Valk July 25th, 2006
-
I've just added Safari 2 and OmniWeb 5.5 to the table as well :) Posted to " CSS3 and Konqueror " by Joost de Valk July 25th, 2006
-
Thx! I've added it! Posted to " The big Summer Holiday contest! " by Joost de Valk August 2nd, 2006
-
This comment was made using Swift :). The lead developer just joined the others on #webkit, i' very curious as to where this is all going. Posted to " WebKit for Windows " by Joost de Valk August 9th, 2006
-
Let me update those pages now... Sec... Done :). Posted to " Konqueror implements new background declarations " by Joost de Valk October 2nd, 2006
-
HTML5 will definitly be cool Peter, that's why I've already registered html5.info, and will be starting a similar site like this on that domain once i get some other stuff sorted out :) Posted to " Which will come first: CSS3 or HTML5? " by Joost de Valk November 10th, 2006
-
Doesn't o-border-radius work? I do seem to recall they had something like this implemented... Posted to " A border-radius solution " by Joost de Valk November 19th, 2006
-
For css3.info, 10% uses IE6, 7% uses IE7. Overall, 69% of our visitors uses Firefox or Mozilla, 6% uses Safari, 5% uses Opera and 1% uses Konqueror. Other browsers don't cross the 1% line... Posted to " Variable take-up for IE7 " by Joost de Valk November 23rd, 2006
-
those colours shouldn't be to hard to implement, it's simply adding a conversion... Posted to " IE.next to support CSS3 colours? " by Joost de Valk November 17th, 2006
-
BTW Peter: yet another great article :) Posted to " Variable take-up for IE7 " by Joost de Valk November 23rd, 2006
-
Emil: i'm sceptic as well, but some very smart people told me this WOULD be a possibility :) Posted to " How we'll lay out websites in 2016 " by Joost de Valk November 30th, 2006
-
Damn good questions Faruk, thx! Keep them coming guys :) Posted to " What do you want to know about CSS3? " by Joost de Valk December 14th, 2006
-
Thx for the questions Jon and Faruk! I've made a list of questions for the first celebrity, and will be sending that out quite soon, so if you have any additional questions, add them fast :) Posted to " What do you want to know about CSS3? " by Joost de Valk December 15th, 2006
-
That's my dirty little secret :P Posted to " Become a CSS professional by reading one book " by Joost de Valk December 17th, 2006
-
He tells you both, although he has more emphasis on how it should work, as that's the way you should learn it. He does teach you a few hacks though, but nothing you wouldn't be able to find on the web. If all you want to learn is how to code for IE as well, I'd suggest finding another book which is somewhat more high level. Posted to " Become a CSS professional by reading one book " by Joost de Valk December 18th, 2006
-
These declarations are needed for SVG, and have been built in such a way that they're available in HTML too, I kinda like them :). Maciej, one of the lead Apple programmers in the WebKit project, has already been trying to get these declarations into WebKit. Posted to " New text declarations in Webkit " by Joost de Valk December 22nd, 2006
-
For this site, it's 7%, with IE6 at 9%... Posted to " The rise of IE7 " by Joost de Valk December 27th, 2006
-
Anonymous: i'd urge you to reconsider on Safari, but perhaps only support WebKit, it's nightly. If you support that, you might end up being all good in 10.5 :) Posted to " The rise of IE7 " by Joost de Valk December 29th, 2006
-
What's your opinion on this Olivier? Perhaps the specification isn't clear enough on this... In my personal opinion a style sheet SHOULD be valid when using vendor specific extensions. Posted to " Vendor specific extensions to CSS3 " by Joost de Valk January 5th, 2007
-
As often as possible, as long as I don't have to notice it to much, would be my idea. Great article btw Peter! Posted to " How often should browsers upgrade? " by Joost de Valk January 9th, 2007
-
Cool stuff Peter :) Posted to " Semantic code: put more in, get more out " by Joost de Valk January 16th, 2007
-
Looking cool Arjan, looking cool :) Posted to " Semantic code: put more in, get more out " by Joost de Valk January 17th, 2007
-
Hi David, nice to see you drop by here :) is this list of sites you "mask" for public? Posted to " The rise of IE7 " by Joost de Valk January 19th, 2007
-
Most browsers are pretty good indeed John, we at css3.info are very focussed on CSS3 development though, which is something Konq put's a lot of effort in :) Posted to " How to use Konqueror without installing Linux " by Joost de Valk February 5th, 2007
-
Barak, I would invite you to try out KHTML and WebKit a bit more, they have the best SVG support IMHO, and are also better at CSS most of the time. Firefox has it's other strenghts of course, it's still my browser of choice for development. Posted to " KHTML 3.5.6 is the most CSS3-compliant of all " by Joost de Valk February 5th, 2007
-
Hey Michal, thx for your info! That is indeed a perfect way to test it. Posted to " How to use Konqueror without installing Linux " by Joost de Valk February 5th, 2007
-
Don't y'all know Mac OS is the only really fun OS out there? :P Now let's be gentle to each other and all enjoy our browsers :) Posted to " How to use Konqueror without installing Linux " by Joost de Valk February 5th, 2007
-
Heh, you beat me to it Peter, I just wanted to start writing about it too :) I've already mailed David to ask if he could provide us with such an internal build, but they're probably not called "internal" because they're given away easily ;) Posted to " CSS3 in future Opera builds " by Joost de Valk January 22nd, 2007
-
Arjan: You can't, and neither can I.... Sorry pal :) Posted to " CSS3 in future Opera builds " by Joost de Valk January 22nd, 2007
-
Long story :), it's Wikipedia entry might explain it :) Posted to " An interview with Veerle Pieters " by Joost de Valk February 4th, 2007
-
I kinda like the idea Devon :) Posted to " Thinking Dyslexic, :not()! " by Joost de Valk February 7th, 2007
-
The selectors Konqueror does so incredibly well aren't that greatly done in WebKit yet... They still have to be ported over, and that won't be happening soon as WebKit's source tree is closed at the moment for anything but P1 bugfixes. Posted to " How to use Konqueror without installing Linux " by Joost de Valk February 6th, 2007
-
Reinier: absolutely right :) css3.info is far from done :) Posted to " An interview with Veerle Pieters " by Joost de Valk February 11th, 2007
-
True words Peter, true words. Posted to " Interview with Andy "Malarkey" Clarke " by Joost de Valk January 28th, 2007
-
Funny thing was Peter, they even mentioned our selector testsuite in their Changelog :) Posted to " KHTML 3.5.6 is the most CSS3-compliant of all " by Joost de Valk January 28th, 2007
-
Very true :) The stuff is slowly coming up, it's nice to see CSS3 gaining more and more momentum. Posted to " The Prince of CSS3 Selectors " by Joost de Valk February 2nd, 2007
-
Cool stuff Devon :). Welcome to the club here! I hope you'll be posting more, there's lots of stuff happening in the CSS3 world, and I'm glad we're gathering a nice team to cover it all! Posted to " The Prince of CSS3 Selectors " by Joost de Valk February 1st, 2007
-
Personally I'm having high expectancies of Firefox 3, especially in the microformats corner... Posted to " Gran Paradiso 2a - CSS3 Selectors " by Joost de Valk February 9th, 2007
-
CSS3 will be defined in parts, so different parts will be in different statuses all the time. For the entire CSS3 spec to be completed will take years... Posted to " Gran Paradiso 2a - CSS3 Selectors " by Joost de Valk February 9th, 2007
-
Lewis: I dare you to make a few nicer examples! I'll put them up here if you do :) Posted to " Creating buttons with CSS3 " by Joost de Valk January 29th, 2007
-
Yeah, It's the main reason I'm not a full time webdesigner, it would frustrate me to much... Posted to " Creating buttons with CSS3 " by Joost de Valk January 29th, 2007
-
Hehe same here :) Posted to " Creating buttons with CSS3 " by Joost de Valk January 29th, 2007
-
Peter: we should do an update on FF3 soon :) Posted to " KHTML 3.5.6 is the most CSS3-compliant of all " by Joost de Valk January 29th, 2007
-
These will probably be ported to WebKit indeed :) and of course you should test your implementation against our testcase :) Posted to " KHTML 3.5.6 is the most CSS3-compliant of all " by Joost de Valk January 30th, 2007
-
Hmm it seemed to work yesterday... I've changed the link though, thx Félix! Posted to " Creating buttons with CSS3 " by Joost de Valk January 30th, 2007
-
Kroc: thx! fixed it. Posted to " It has started! " by Joost de Valk May 28th, 2007
-
Ow and Jacques: thx a lot for the warm words! Posted to " It has started! " by Joost de Valk May 28th, 2007
-
Guy: fixed that, thx for noticing! (I had just updated that widget ;) ) Posted to " It has started! " by Joost de Valk May 30th, 2007
-
Covarr: ah thx a LOT. That's WordPress's stat's package. Let me disable that right away. Posted to " It has started! " by Joost de Valk May 29th, 2007
-
Arjan: fixed both issues, thx for letting me know. And I do appreciate all your opinions, both "negative" and positive :) Posted to " It has started! " by Joost de Valk May 29th, 2007
-
Hmm more people have been talking about the header graphic :) I'll have to talk to Laurens and Niels about getting it back a bit more perhaps :) Posted to " It has started! " by Joost de Valk May 29th, 2007
-
Jacques: you did it correctly, only thing is: you actually have to give an anchor tag for an anchor to work ;) updated your first comment ;) Posted to " It has started! " by Joost de Valk May 30th, 2007
-
Hehe Guy, and fixed that too :) Posted to " It has started! " by Joost de Valk May 31st, 2007
-
I don't agree Thiemo... They're buttons, the whole thing should be active. Posted to " Graceful Degradation " by Joost de Valk June 28th, 2007
-
Hmm you're prolly right, as the anchor spreads across the whole li :) Why did you make that choice Peter? :) Posted to " Graceful Degradation " by Joost de Valk June 28th, 2007
-
Hehe ok, perfect answer :) Posted to " Graceful Degradation " by Joost de Valk June 28th, 2007
-
@Peter: I have a vague remembering of WebKit supporting that... (SVG in background) Posted to " Graceful Degradation " by Joost de Valk June 28th, 2007
-
@Peter: Why did you include the border-radius for webkit btw? WebKit supports multiple backgrounds... Posted to " Graceful Degradation " by Joost de Valk June 28th, 2007
-
Good stuff :) Posted to " Graceful Degradation " by Joost de Valk June 28th, 2007
-
Hehe depends on the site you're at John... We do the graceful stuff here at css3.info :) Great piece Peter! Perhaps we can do a little tweaking on our new layout with the nth-selector thing? Posted to " Graceful Degradation " by Joost de Valk June 28th, 2007
-
Personally, I'm very very happy to see two points here: that the csswg is starting a weblog, and the sentence "Interact more with sites like css3.info." is very flattering of course :) Posted to " Pulling Back the Curtain: Opening up the CSS Working Group " by Joost de Valk June 7th, 2007
-
David: I was notified of that ;) sorry to fantasai, updated the post ;) Posted to " Pulling Back the Curtain: Opening up the CSS Working Group " by Joost de Valk June 7th, 2007
-
@ajaxus: CSS3 is divided into different modules, each of which can become official at it's own right. For none of the modules an official date is set yet. Posted to " Bragging rights to the proper browser " by Joost de Valk June 26th, 2007
-
hehe the sentence is BAD indeed, let me put back the word that's supposed to be there :P Posted to " Media queries and Multiple Columns modules updated " by Joost de Valk June 8th, 2007
-
now it's back :) something with code inside an anchor being better than an anchor inside a code tag ;) Posted to " Media queries and Multiple Columns modules updated " by Joost de Valk June 8th, 2007
-
Good stuff Peter! The @font-face declaration should be very very interesting, especially combined with the conditional SIFR i'm currently building, which would allow to use SIFR if there's no other possible way to use the correct font :) Posted to " Håkon Wium Lie on the future of the web " by Joost de Valk June 8th, 2007
-
Good piece Peter :) have you, by any chance, tested how Konqueror behaves with this as well? Posted to " border-radius: Safari vs Mozilla " by Joost de Valk June 19th, 2007
-
@Leland: KHTML and WebKit share a lot of code, but they're absolutely NOT the same as far as CSS3 is concerned. The selectors test is passed completely by Konqueror, and not by Webkit / Safari 3, whereas WebKit supports other css3 features that Konqueror does not support. Posted to " Opera 9.5 races ahead with CSS 3 support " by Joost de Valk June 24th, 2007
-
@peter: i'll run some new clean stats tomorrow ;) Posted to " Browser shares? 84% Safari! " by Joost de Valk July 13th, 2007
-
@Lewis: I'll check it out :) Posted to " Browser shares? 84% Safari! " by Joost de Valk July 12th, 2007
-
@Thomas: though I like the idea of a sort of semantic to target different browsers with different fixes from within the same CSS file, I absolutely hate the idea of more browsers picking up on conditional comments... They're one of the most horrible solutions I've ever seen... (although it beats using css hacks ;) ) @Peter: nice article! Like the idea, I'll be using it a new site I'm building for work :) Posted to " Opacity, RGBA and compromise " by Joost de Valk June 4th, 2007
-
@James Hopkins: yeah, totally agree on that. @Jacques: good stuff :) Posted to " Apple releases Safari 3 Beta " by Joost de Valk June 15th, 2007
-
Welcome David! Nice post and glad to see you joining us :) Posted to " Styling figures with CSS3 " by Joost de Valk July 9th, 2007
-
@ Thomas: it's free form yeah :) @ Covarr: well, I will except all sites that use CSS3 with fallbacks for browsers in which things don't work. Posted to " Submit your CSS3 designs! " by Joost de Valk May 23rd, 2007
-
Ok guys, for those of you having trouble, this is the problem, it occurs on non-english windows installs... Posted to " Apple releases Safari 3 Beta " by Joost de Valk June 12th, 2007
-
I think it's older than one week, to be honest :) It's quite stable here on Mac OS though. Posted to " Apple releases Safari 3 Beta " by Joost de Valk June 11th, 2007
-
You are, of course, right, however, css3 is not "official" yet either so who cares? :P Posted to " Updates to css3.info " by Joost de Valk September 5th, 2007
-
I'll have a look at all of it tonight :) Posted to " Updates to css3.info " by Joost de Valk September 6th, 2007
-
Thx! fixed that :) Posted to " Updates to css3.info " by Joost de Valk September 6th, 2007
-
@John: we should test how background-size and multiple backgrounds go together :) Posted to " Liquid faux columns with background-size " by Joost de Valk September 19th, 2007
-
I've done that once, I think WebKit supports that pretty well... Posted to " Liquid faux columns with background-size " by Joost de Valk September 19th, 2007
-
The big question is: who's going to create a conditional SIFR now? :) Posted to " Webkit has web fonts support " by Joost de Valk October 4th, 2007
-
@Tim: thx! @fantasai: Yeah we should probably be linking to the w3 css3 test cases :) I'd love to have some more previews on this site covering the aspects of css3 that we don't currently cover. Posted to " Request: test cases! " by Joost de Valk October 22nd, 2007
-
I'm a bit surprised as well by the fact that media queries don't appear in this snapshot... There's an apparent need for them, and by not setting a standard now, it's becoming nearly impossible to change anything WebKit for instance might have done wrong, as there will be thousands of iPhone apps using it... (Although that's probably overestimating those designers) Posted to " CSS Snapshot 2007 released as a working draft " by Joost de Valk October 22nd, 2007
-
@Robin: trust me, I know my SEO, and this is no problem at all. The white on white is there on purpose as it's a demo, so I'm not too worried about accessibility either to be honest. Posted to " New text-shadow demo " by Joost de Valk October 11th, 2007
-
@Arjan: which browser are you using? @Robin: I have a pretty high esteem of our uses, and don't think they'd use it wrongly :) this is obviously not a way to display big amounts of text :) Posted to " New text-shadow demo " by Joost de Valk October 12th, 2007
-
Aht hx guys, had the tags the wrong way around there ;) Posted to " New text-shadow demo " by Joost de Valk October 12th, 2007
-
Can't help but agree with Ed Everett David :) I'm just as psyched as you are over the speed of development, but show us some of the stuff :) (or at least email ME that build ;) ) Posted to " Opera overtakes Safari in Acid3 race, reaches 100% " by Joost de Valk March 26th, 2008
-
Agreed Peter! Posted to " Opera overtakes Safari in Acid3 race, reaches 100% " by Joost de Valk March 26th, 2008
-
WebKit is now at 98/100 btw, on a downloadable nightly ;) Posted to " Opera overtakes Safari in Acid3 race, reaches 100% " by Joost de Valk March 27th, 2008
-
the trouble is, h5n1, that most of your employers won't let you. Face it: 99% of people don't give a shit about browsers, if something is broken they blame the site owner and they go buy their goods elsewhere... It's sad but true. Posted to " Opera files antitrust complaint against Microsoft " by Joost de Valk December 14th, 2007
-
@David & @Maciej: I agree on that! Keep the competition, it's making everybody better... Posted to " Opera overtakes Safari in Acid3 race, reaches 100% " by Joost de Valk March 28th, 2008
-
Welcome to the crew James! Posted to " Tooltips with CSS3 " by Joost de Valk February 28th, 2008
-
Cool stuff, that's really a step ahead. Posted to " MS reverse decision on IE8's opt-in standards compliancy mode " by Joost de Valk March 4th, 2008
-
@dan coulter thx for noticing, I fixed that... there's still a hack into xmlrpc.php in WordPress somwhere it seems, even in 2.3.3 Posted to " Safari 3.1 pushes CSS3 support forward " by Joost de Valk March 21st, 2008
-
I don't agree John. Image replacement is a fine way of creating an accessible site whilst providing good looks too. Posted to " Image Replacement in CSS3 " by Joost de Valk February 8th, 2008
-
That IS very very nice Peter! @Daniel: well yes I would think there would be a need, for instance to replace a company's logo with plain text in the source of the HTML. Posted to " Image Replacement in CSS3 " by Joost de Valk February 8th, 2008
-
Test comment to see if grAvatars work. Posted to " New hosting, WordPress 2.5 and more! " by Joost de Valk March 31st, 2008
-
Great to see someone take this to the next level, good work Chris! Posted to " Site Update: CSS3 Module Status Table " by Joost de Valk July 19th, 2009
-
Have to say, as the original creator of this site, that this design feels like you're killing it... The fact that hundreds of people here in the comments are telling you that and that you're not responding to it doesn't make it better. Also: where is all this new content you speak of? Sigh... You're making me wish I'd never quite the site. Posted to " Welcome to the new look CSS3 .info " by Joost de Valk March 9th, 2010
-