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Lea Verou @ Front-Trends 2010

Just a quick note to let you know that I’m speaking in this year’s Front-Trends conference, which will take place in Warsaw, Poland on October 21-22. Front-Trends is a new conference (starting this year) but the organizers have managed to put together an impressive line-up (Crockford, PPK, Paul Bakaus, Dmitry BaranovskiyTantek Çelik, Robert Nyman and more).

My talk will introduce many aspects of CSS3, some of them in good depth (eg. selectors). Here is the official abstract:

Pragmatic CSS3

With browsers constantly adding support for CSS3, especially now that even IE jumped in the game, it’s quickly becoming a necessary tool of the trade. CSS3 offers exciting possibilities and changes the way that we design and develop websites.

In this 2-hour practical session, full of real world use cases, you will learn:

  • Everything you ever wanted to know about CSS3 selectors
  • Transparency and new color formats, including RGBA
  • New ways to work with backgrounds, including CSS gradients, multiple background images and natively supported CSS sprites
  • Rounded corners and border images
  • Box and text shadows
  • Transforms, transitions and their potential downsides
  • New values, including calc(), attr() and new units
  • Browser support information and techniques to take advantage of the exciting new stuff with respect to browsers of the past, to create experiences that are enjoyable for everyone

Tickets are very cheap (Just €198) but they’re selling quite fast, so if you want to come, hurry up!

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CSS3 colors, today (MediaCampAthens session)

Yesterday, I had a session at MediaCampAthens (a BarCamp-style event), regarding CSS3 colors. If you’ve followed my earlier posts tagged with “colors”, my presentation was mostly a sum-up of these.

It was my first presentation ever, actually, the first time I talked to an audience for more than 1 minute 😛 . This caused some goofs:

  • When introducing myself, I said completely different things than I intended to and ended up sounding like an arrogant moron 😛
  • I tried not to look at the audience too much, in order to avoid sounding nervous, and this caused me to completely ignore 2 questions (as I found out afterwards)! How embarrasing!
  • At a certain point, I said “URL” instead of “domain” 😛

Also, I had prepared some screenshots (you’ll see them in the ppt) and the projector completely screwed them up, as it showed any dark color as black.

Apart from those, I think it went very well, I received lots of positive feedback about it and the audience was paying attention, so I guess they found it interesting (something that I didn’t expect 😛 ).

Here is the presentation:

Please note that Slideshare messed up slide #8 and the background seems semi-transparent grey instead of semi-transparent white.

By the way, I also thought afterwards that I had made a mistake: -ms-filter is not required if we combine the gradient filter with Data URIs, since IE8 supports Data URIs (for images at least). Oops, I hate making mistakes that I can’t correct.

Here are some photos from my session. If I did it correctly, every facebook user can see them. If I messed things up, tell me 😛

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On native, single-input, multiple file uploads

If you are following the current news on web development, you probably heard that the new Safari 4 has a great feature: It natively allows the user to select multiple files via a single input control, if you specify a value for the attribute multiple:

<input type="file" multiple>

or, in XHTML:

<input type="file" multiple="multiple" />

You might not know that Opera supported multiple file uploads for a while now, based on the earlier Web Forms 2.0 standard in a slightly different (and more flexible) format:

<input type="file" min="1" max="9999″ />