CSS3 media queries allow specifying different style rules for different device characteristics like screen width. The document discusses the basic syntax and properties of media queries like using max-width, only screen, not screen. It provides examples of using media queries with CSS, links, and imports. While the examples attempt to explain media queries, several have incorrect or missing syntax that would prevent them from working as intended.

1. MEDIA QUERY 123
@ 閃光洽

2. ABOUT ME
Hina Chen, a.k.a. 閃光洽
農夫
鐵工
居家修繕
http://blog.hinablue.me

3. BEFORE WE START...
You should know about,
WebConf@2013 ROCK!!!
http://webconf.hinablue.me/2013
Baby don't go if you're in the wrong session.
Do not loudly if you have been reading the slide.
Do not snore if you are asleep.
Thank you all for join this session!

4. OK, LET'S GO.
http://www.flickr.com/photos/npobre/2601582256/

5. MEDIA QUERY
@MEDIA

6. WHAT IS MEDIA QUERY ?
CSS3 bring awesome new part!
Vary simple way to feed different CSS based on
characteristic users' device.
Make us to re-think about "device".
Maybe easy to retrofix existing design.

7. WHAT THE MEDIA QUERY FOR ?
Your device.
And your devices.

8. WHAT THE MEDIA QUERY NOT FOR ?
Your feeling.
NOT based on browser.
Yes, it just based on @viewport size.

9. @VIEWPORT ?
ok, we talk about later.

10. ABOUT @MEDIA
There are 3 way to go,
1. @media with <link> tag
㫪㫣㫠㫥㫢㫔㫩㫜㫣㫫㫔㫪㫫㫰㫣㫜㫪㫟㫜㫜㫫㫔㫔㫤㫜㫛㫠㫘㫫㫔㫪㫚㫩㫜㫜㫥㫔㫔㫟㫩㫜㫝㫫㫔㫜㫜㫜㫔㫬
2. @media with CSS
㫮㫤㫜㫛㫠㫘㫔㫪㫚㫩㫜㫜㫥㫔㫲㫔㫜㫜㫜㫔㫴
3. @media with @import
㫮㫠㫤㫧㫦㫩㫫㫔㫬㫩㫣㫖㫪㫚㫩㫜㫜㫥㫜㫚㫪㫪㫗㫔㫪㫚㫩㫜㫜㫥㫩

11. @MEDIA WITH DEVICES
TL;DR
CSS3 Media Queries
We just talk about,
screen
all
not all

12. @MEDIA EXPRESSIONS
screen and ( max-width: 480px )
only screen and ( max-width: 768px )
not screen and ( max-width: 1024px )
screen, projection
unknown value will equal to "not all"

13. @MEDIA PROPERTIES
1. width, height, device-width, device-height
2. orientation, aspect-ratio, device-aspect-ratio
3. color, color-index, monochrome
4. resolution, scan (only for tv media), grid
5. max-, min- prefix
㫤㫘㫯㫛㫨㫔㫣㫜㫪㫪㫔㫫㫟㫘㫥㫔㫘㫥㫛㫔㫜㫨㫬㫘㫣㫔㫫㫦
㫤㫠㫥㫛㫨㫔㫞㫩㫜㫘㫫㫜㫩㫔㫫㫟㫘㫥㫔㫘㫥㫛㫔㫜㫨㫬㫘㫣㫔㫫㫦

14. @MEDIA PROPERTIES UNIT
width, height use px, pt, pc, cm, mm, in
ratio use width/height, ie. 1024/768, 16/9
color, monochrome use number, ie. 1, 2, 3... etc.
resolution use dpi, dpcm
orientation only portrait and landscape are valid
value
scan only progressive and interlace are valid value
grid only 0 and 1 are vaild value

15. WHEN @MEDIA ACTUALLY WORK ?
Correct device with @media
㫮㫤㫜㫛㫠㫘㫔㫦㫥㫣㫰㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫢㫦㫞㫧㫯㫔㫗
Expressions or properties matched
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫠㫥㫛㫮㫠㫛㫫㫟㫨㫔㫥㫤㫦㫧㫯㫔㫗㫔㫘㫥㫛㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫟㫞㫠㫢㫧㫯㫔㫗
"not all"
㫮㫤㫜㫛㫠㫘㫔㫫㫜㫪㫫

16. WE KNOWN THE MEDIA QUERY !
YAY!
http://www.flickr.com/photos/t0msk/4109452525/

17. OK, TRY TO EXPLAIN THIS,
㫔㫔㫔㫔㫮㫤㫜㫛㫠㫘㫔㫦㫥㫣㫰㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫟㫠㫞㫞㫧㫯㫔㫲
㫔㫔㫔㫔㫔㫔㫔㫔㫝㫘㫔㫮㫦㫩㫢㫔㫦㫩㫔㫥㫦㫫㫭㫔㫘㫝
㫔㫔㫔㫔㫴
㫔㫔㫔㫔㫮㫤㫜㫛㫠㫘㫔㫦㫥㫣㫰㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫖㫤㫠㫥㫛㫮㫠㫛㫫㫟㫨㫔㫢㫦㫞㫧㫯㫗㫔㫘㫥㫛㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫥㫤㫦㫧㫯㫔㫗㫔㫲
㫔㫔㫔㫔㫔㫔㫔㫔㫝㫘㫔㫮㫦㫩㫢㫔㫦㫩㫔㫥㫦㫫㫭㫔㫘㫝
㫔㫔㫔㫔㫴
㫔㫔㫔㫔㫮㫤㫜㫛㫠㫘㫔㫫㫜㫪㫫㫩㫚㫔㫪㫚㫩㫜㫜㫥㫔㫲
㫔㫔㫔㫔㫔㫔㫔㫔㫝㫘㫔㫮㫦㫩㫢㫔㫦㫩㫔㫥㫦㫫㫭㫔㫘㫝
㫔㫔㫔㫔㫴
㫔㫔㫔㫔㫮㫤㫜㫛㫠㫘㫔㫮㫤㫜㫛㫠㫘㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫔㫤㫦㫥㫦㫚㫟㫩㫦㫤㫜㫔㫗㫔㫲
㫔㫔㫔㫔㫔㫔㫔㫔㫝㫘㫔㫮㫦㫩㫢㫔㫦㫩㫔㫥㫦㫫㫭㫔㫘㫝
㫔㫔㫔㫔㫔㫔㫔㫔㫙㫦㫛㫰㫔㫲㫔㫚㫦㫣㫦㫩㫨㫔㫩㫜㫛㫩㫔㫴
㫔㫔㫔㫔㫴

18. ALL NOT WORK, WHY?
http://www.flickr.com/photos/mpilote/3304961453/

19. IDENTIFY THE WRONG,
㫔㫔㫔㫔㫮㫤㫜㫛㫠㫘㫔㫦㫥㫣㫰㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫟㫠㫞㫞㫧㫯㫔㫗㫔㫲
㫔㫔㫔㫔㫔㫔㫔㫔㫝㫘㫔㫗㫦㫥㫕㫫㫔㫝㫦㫩㫞㫜㫫㫔㫫㫟㫜㫔㫙㫩㫘㫚㫢㫜㫫㫪㫔㫮㫠㫫㫟㫔㫤㫜㫛㫠㫘㫔㫝㫜㫘㫫㫬㫩㫜㫪㫜㫔㫘㫝
㫔㫔㫔㫔㫴
㫔㫔㫔㫔㫮㫤㫜㫛㫠㫘㫔㫦㫥㫣㫰㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫤㫠㫥㫛㫮㫠㫛㫫㫟㫨㫔㫢㫦㫞㫧㫯㫗㫔㫘㫥㫛㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫥㫤㫦㫧㫯㫔㫗㫔㫲
㫔㫔㫔㫔㫔㫔㫔㫔㫝㫘㫔㫗㫦㫔㫪㫧㫘㫚㫜㫔㫙㫜㫫㫮㫜㫜㫥㫔㫔㫘㫥㫛㫔㫔㫘㫥㫛㫔㫫㫟㫜㫔㫜㫯㫧㫩㫜㫪㫪㫠㫦㫥㫔㫠㫪㫔㫥㫦㫫㫔㫘㫣㫣㫦㫮㫜㫛㫜㫔㫘㫝
㫔㫔㫔㫔㫴
㫔㫔㫔㫔㫮㫤㫜㫛㫠㫘㫔㫫㫜㫪㫫㫩㫚㫔㫪㫚㫩㫜㫜㫥㫔㫲
㫔㫔㫔㫔㫔㫔㫔㫔㫝㫘㫔㫗㫜㫤㫠㫚㫦㫣㫦㫥㫔㫫㫜㫩㫤㫠㫥㫘㫫㫜㫪㫔㫠㫥㫔㫫㫟㫜㫔㫮㫤㫜㫛㫠㫘㫔㫩㫬㫣㫜㫔㫠㫥㫔㫖㫗㫗㫜㫔㫘㫝
㫔㫔㫔㫔㫴
㫔㫔㫔㫔㫮㫤㫜㫛㫠㫘㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫔㫤㫦㫥㫦㫚㫟㫩㫦㫤㫜㫔㫗㫔㫲
㫔㫔㫔㫔㫔㫔㫔㫔㫝㫘㫔㫘㫟㫠㫚㫟㫔㫤㫦㫥㫦㫚㫟㫩㫦㫤㫜㫔㫪㫚㫩㫜㫜㫥㫔㫚㫘㫥㫔㫛㫠㫪㫧㫣㫘㫰㫔㫩㫜㫛㫔㫚㫦㫣㫦㫩㫔㫭㫔㫘㫝
㫔㫔㫔㫔㫔㫔㫔㫔㫙㫦㫛㫰㫔㫲㫔㫚㫦㫣㫦㫩㫨㫔㫩㫜㫛㫩㫔㫴
㫔㫔㫔㫔㫴

20. @MEDIA AND DISPLAY
DIVERSITY OF DISPLAY

21. ABOUT "DISPLAY"
Desktop, laptop display
Smartphone display
Retina display
All other displays

22. THE CHALLENGE FROM MOBILE DEVICES
5.6 billion users at the
early 2013.
491.4 million mobile
phones at 2011.
photocount.com

23. HOW MANY DISPLAY RESOLUTION WE
MUST CONSIDER ?
List of displays by pixel density

24. NOT
INFINITE
BUT
CLOSE
RIGHT ?
Think about the Android devices.

25. DESTINY
DENSITY

26. WHY WE TALK ABOUT DENSITY ?
@media work based on @viewport rule.
㫮㫭㫠㫜㫮㫧㫦㫩㫫㫔㫲
㫔㫔㫔㫔㫮㫠㫛㫫㫟㫨㫔㫢㫞㫞㫧㫯㫩
㫴
㫮㫤㫜㫛㫠㫘㫔㫦㫥㫣㫰㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫢㫦㫞㫧㫯㫗㫔㫲㫔㫜㫜㫜㫔㫴
Mobile devices has lots of resolution.
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫛㫮㫜㫙㫢㫠㫫㫛㫤㫠㫥㫛㫛㫜㫭㫠㫚㫜㫛㫧㫠㫯㫜㫣㫛㫩㫘㫫㫠㫦㫨㫔㫠㫔㫗㫔㫲
㫔㫔㫔㫔㫝㫘㫔㫠㫗㫟㫦㫥㫜㫢㫔㫘㫝
㫴

27. WHY WE CONSIDER THE DENSITY ?
In the mobile device (ie. iPhone4), screen resolution is
640x960 that specification say so. So, can we use @media
( max-width: 640px ) to do our job?
NO. You should use @media ( max-width: 320px ) cause
the device-pixel-ratio is 2.

28. DENSITY CONVERSION
Designing (and converting) for multiple mobile densities

29. “
As an example, if your page had an image that was 100px
by 100px, you'd provide an image that was 200px by
200px, but specify in CSS or as an attribute in HTML that
it is 100px by 100px.
The reason this works is that a pixel on the screen is not
the same as a CSS pixel. This is a good thing, because
otherwise as I say, things would be tiny.
--Rich Bradshaw
Pixel density, retina display and font-size in CSS ”

30. DEVICE-PIXEL-RATIO
TL; DR
More about device-pixel-ratio
List of displays by pixel density

31. I DON'T WANT TO DO MATH !
Use "dppx", "vw", "vh"
Resolution Units
㫟㫛㫧㫧㫯㫔㫠㫪㫔㫜㫨㫬㫠㫭㫘㫣㫜㫥㫫㫔㫫㫦㫔㫧㫤㫛㫧㫠㫜
Viewport percentage lengthes
㫟㫭㫮㫔㫠㫪㫔㫜㫨㫬㫠㫭㫘㫣㫜㫥㫫㫔㫫㫦㫔㫡㫠㫧㫯㫚㫔㫠㫝㫔㫮㫠㫛㫫㫟㫔㫦㫝㫔㫫㫟㫜㫔㫭㫠㫜㫮㫧㫦㫩㫫㫔㫠㫪㫔㫡㫠㫞㫧㫯㫜

32. BACK TO MEDIA QUERY
@MEDIA IN THE REAL WORLD

33. DESIGN FOR DIFFERENT DEVICES
different devices = different widths
start with browser if possible
wide or narrow
retrofit existing design
content first

34. START WITH DESKTOP STYLES
Good parts
Easy to start or retrofit existing design
IE 6-8 may work correctly without extra work
Otherwise
Requests Javascript or style to support mobile
design in IE Mobile or other mobile browsers

35. START WITH MOBILE STYLES
Good parts
Non-support media query browsers still get the
mobile style
Mobile device will not downloading unneeded
desktop style
Otherwise
Requests Javascript or style to support IE 6-8 to
make it work correctly

36. WHAT IS YOUR CHOOSE ?
http://www.flickr.com/photos/marfis75/8031936764/

37. WE START WITH MOBILE STYLES
Narrow width
320x480

38. WE START WITH MOBILE STYLES
Wide width
1280x900

39. WE START WITH MOBILE STYLES
Narrow width
320x480

40. WE START WITH MOBILE STYLES
Wide width
1280x900

41. WHAT'S QUERY WE HAVE ?
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫣㫣㫡㫧㫯㫔㫗
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫢㫦㫞㫧㫯㫔㫗
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫢㫢㫞㫧㫯㫔㫗
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫡㫠㫞㫧㫯㫔㫗
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫠㫥㫛㫮㫠㫛㫫㫟㫨㫔㫥㫤㫦㫧㫯㫔㫗㫔㫘㫥㫛㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫧㫥㫧㫧㫯㫔㫗
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫠㫥㫛㫮㫠㫛㫫㫟㫨㫔㫧㫦㫞㫧㫯㫔㫗
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫠㫥㫛㫮㫠㫛㫫㫟㫨㫔㫟㫞㫦㫞㫧㫯㫔㫗
total 105 lines in SASS

42. WHY OUR QUERIES SO ODDLY ?
WHY SO MANY MEDIA QUERY WE USED ?

43. THE BOOTSTRAP WAY
Responsive Media Query Quick Reference

44. LOOK AGAIN OUR QUERIES,
Bootstrap use,
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫢㫦㫞㫧㫯㫔㫗
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫠㫥㫛㫮㫠㫛㫫㫟㫨㫔㫥㫤㫦㫧㫯㫔㫗㫔㫘㫥㫛㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫧㫥㫧㫧㫯㫔㫗
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫠㫥㫛㫮㫠㫛㫫㫟㫨㫔㫧㫦㫞㫧㫯㫔㫗
We have,
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫣㫣㫡㫧㫯㫔㫗
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫢㫢㫞㫧㫯㫔㫗
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫡㫠㫞㫧㫯㫔㫗
㫮㫤㫜㫛㫠㫘㫔㫖㫔㫤㫠㫥㫛㫮㫠㫛㫫㫟㫨㫔㫟㫞㫦㫞㫧㫯㫔㫗

45. THE QUERY REALLY DO IS...
Make special size of your elements to fit the layout.
㫭㫘㫩㫔㫧㫩㫦㫤㫠㫪㫜㫔㫫㫔㫛㫦㫚㫬㫤㫜㫥㫫㫜㫙㫦㫛㫰㫜㫦㫝㫝㫪㫜㫫㫘㫠㫛㫫㫟㫔㫳㫳㫔㫛㫦㫚㫬㫤㫜㫥㫫㫜㫛㫦㫚㫬㫤㫜㫥㫫㫘㫣㫜㫤㫜㫥㫫㫜㫦㫝㫝㫪㫜㫫㫘㫠㫛㫫㫟㫔
㫳㫳㫔㫮㫠㫥㫛㫦㫮㫜㫠㫥㫥㫜㫩㫘㫠㫛㫫㫟㫩
㫠㫝㫔㫖㫔㫧㫩㫦㫤㫠㫪㫜㫔㫫㫫㫔㫤㫡㫡㫔㫗㫔㫲
㫔㫔㫔㫔㫝㫘㫔㫗㫦㫔㫰㫦㫬㫩㫔㫪㫧㫜㫚㫠㫘㫣㫔㫨㫬㫜㫩㫰㫔㫟㫜㫩㫜㫜㫔㫘㫝
㫴㫔㫜㫣㫪㫜㫔㫲
㫔㫔㫔㫔㫝㫘㫔㫙㫠㫞㫟㫫㫔㫮㫠㫫㫟㫔㫰㫦㫬㫩㫔㫗㫗㫚㫔㫘㫥㫛㫔㫗㫘㫘㫗㫔㫯㫘㫗㫗㫘㫜㫔㫘㫝
㫴

46. SPECIAL WE USED
㫮㫤㫜㫛㫠㫘㫔㫖㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫣㫣㫡㫧㫯㫗㫔㫲
㫔㫔㫔㫔㫝㫘㫔㫧㫩㫜㫭㫠㫜㫮㫔㫚㫘㫩㫛㫔㫤㫘㫯㫤㫠㫬㫤㫔㫪㫠㫱㫜㫚㫔㫝㫦㫩㫚㫜㫔㫫㫦㫔㫘㫣㫠㫞㫥㫔㫚㫜㫥㫫㫜㫩㫔㫦㫝㫔㫧㫘㫞㫜㫜㫔㫘㫝
㫴

47. SPECIAL WE USED
㫮㫤㫜㫛㫠㫘㫔㫖㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫟㫞㫦㫞㫧㫯㫗㫔㫲
㫔㫔㫔㫔㫝㫘㫔㫧㫩㫜㫭㫠㫜㫮㫔㫚㫘㫩㫛㫔㫤㫘㫯㫤㫠㫬㫤㫔㫪㫠㫱㫜㫚㫔㫝㫦㫩㫚㫜㫔㫫㫦㫔㫘㫣㫠㫞㫥㫔㫚㫜㫥㫫㫜㫩㫔㫦㫝㫔㫧㫘㫞㫜㫜㫔㫘㫝
㫴

48. START WITH DESKTOP STYLES ?
Actually, we tried, and we failed.
Retrofit existing design is too difficult.
Original design is NOT content first.
Visual design cannot reuse in the narrow styles.
Alomst overwriting all the style we have.
Vary hard to fine tune in the mobile device.
We do REALLY not want to test Android devices.

49. SIMPLE
is fucking
HARD

50. OH!!!
ABOUT @VIEWPORT

51. WHAT IS @VIEWPORT ?
show your layout in the viewable area.
zoom in/out your layout with client behavior.
fit some rules with the device.
@media depends on @viewport size.

52. WHAT THE @VIEWPORT DO ?
initial viewport
Initial some properties which the device really have
and IT IS READ-ONLY. In the other word, it called
"visual viewport".
actual viewport
After initial viewport, this is the rules you setting in
the viewport, in the other word, it called "layout
viewport".

53. WHY WE LEARN ABOUT @VIEWPORT ?
TL; DR
A tale of two viewports — part two
w3c, css device adaptation

54. I DO NOT WANT TO LEARN.
http://www.flickr.com/photos/jdblundell/3324932274/

55. OK, JUST COPY AND PASTE
html5-boilerplate
㫪㫤㫜㫫㫘㫔㫥㫘㫤㫜㫫㫔㫭㫠㫜㫮㫧㫦㫩㫫㫔㫔㫚㫦㫥㫫㫜㫥㫫㫫㫔㫮㫠㫛㫫㫟㫫㫛㫜㫭㫠㫚㫜㫛㫮㫠㫛㫫㫟㫔㫬
or this one,
㫪㫤㫜㫫㫘㫔㫥㫘㫤㫜㫫㫔㫭㫠㫜㫮㫧㫦㫩㫫㫔㫔㫚㫦㫥㫫㫜㫥㫫㫫㫔㫮㫠㫛㫫㫟㫫㫛㫜㫭㫠㫚㫜㫛㫮㫠㫛㫫㫟㫩㫔㫠㫥㫠㫫㫠㫘㫣㫛㫪㫚㫘㫣㫜㫫㫟㫔㫬
or this one,
㫪㫤㫜㫫㫘㫔㫥㫘㫤㫜㫫㫔㫭㫠㫜㫮㫧㫦㫩㫫㫔㫔㫚㫦㫥㫫㫜㫥㫫㫫㫔㫮㫠㫛㫫㫟㫫㫛㫜㫭㫠㫚㫜㫛㫮㫠㫛㫫㫟㫩㫔㫠㫥㫠㫫㫠㫘㫣㫛㫪㫚㫘㫣㫜㫫㫟㫩㫔㫤㫠㫥㫠㫤㫬㫤㫛㫪㫚㫘㫣
㫜㫫㫟㫜㫞㫔㫬

56. AND DO NOT ASK ME WHY !
GOOGLE IT, PLEASE.
http://www.flickr.com/photos/lassi_kurkijarvi/3456993824/

57. LITTLE QUIZ
WOULD YOU REALLY KNOW ABOUT @MEDIA ?
http://www.flickr.com/photos/albertogp123/5843577306/

58. Q1: WHICH @MEDIA WILL WORK ?
㫮㫭㫠㫜㫮㫧㫦㫩㫫㫔㫲
㫔㫔㫔㫔㫮㫠㫛㫫㫟㫨㫔㫢㫞㫞㫧㫯㫩
㫴
㫮㫤㫜㫛㫠㫘㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫢㫦㫞㫧㫯㫗㫔㫲
㫔㫔㫔㫔㫝㫘㫔㫥㫘㫩㫩㫦㫮㫔㫪㫫㫰㫣㫜㫔㫘㫝
㫴
㫮㫤㫜㫛㫠㫘㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫥㫤㫦㫧㫯㫗㫔㫲
㫔㫔㫔㫔㫝㫘㫔㫮㫠㫛㫜㫔㫪㫫㫰㫣㫜㫔㫘㫝
㫴
㫮㫤㫜㫛㫠㫘㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫤㫠㫥㫛㫮㫠㫛㫫㫟㫨㫔㫟㫠㫞㫞㫧㫯㫗㫔㫲
㫔㫔㫔㫔㫝㫘㫔㫭㫜㫩㫰㫔㫮㫠㫛㫜㫔㫪㫫㫰㫣㫜㫔㫘㫝
㫴

59. Q2: WHICH @MEDIA WILL WORK ?
㫮㫭㫠㫜㫮㫧㫦㫩㫫㫔㫲
㫔㫔㫔㫔㫮㫠㫛㫫㫟㫨㫔㫧㫠㫞㫧㫯㫩
㫴
㫮㫤㫜㫛㫠㫘㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫢㫦㫞㫧㫯㫗㫔㫲
㫔㫔㫔㫔㫝㫘㫔㫥㫘㫩㫩㫦㫮㫔㫪㫫㫰㫣㫜㫔㫘㫝
㫴
㫮㫤㫜㫛㫠㫘㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫤㫘㫯㫛㫮㫠㫛㫫㫟㫨㫔㫥㫤㫦㫧㫯㫗㫔㫲
㫔㫔㫔㫔㫝㫘㫔㫮㫠㫛㫫㫔㫪㫫㫰㫣㫜㫔㫘㫝
㫴
㫮㫤㫜㫛㫠㫘㫔㫪㫚㫩㫜㫜㫥㫔㫘㫥㫛㫔㫖㫤㫠㫥㫛㫮㫠㫛㫫㫟㫨㫔㫟㫠㫞㫞㫧㫯㫗㫔㫲
㫔㫔㫔㫔㫝㫘㫔㫭㫜㫩㫰㫔㫮㫠㫛㫜㫔㫪㫫㫰㫣㫜㫔㫘㫝
㫴

60. ANSWER
Q1:
narrow style will work, wide style will overwrite if the
same properties occur.
Q2:
all does not work.

61. YOUR ANSWER IS ALL WRONG ?
http://www.flickr.com/photos/proimos/4199675334/

62. LOOK AGAIN @VIEWPORT PROPERTIES
Those can work with <meta> tag,
width, height
initial-scale
minimum-scale, maximum-scale
user-scalable
target-densityDpi
㫫㫘㫩㫞㫜㫫㫛㫛㫜㫥㫪㫠㫫㫰㫗㫧㫠㫔㫡㫬㫪㫫㫔㫮㫦㫩㫢㫔㫠㫥㫔㫪㫦㫤㫜㫔㫘㫥㫛㫩㫦㫠㫛㫔㫛㫜㫭㫠㫚㫜㫪㫜

63. @VIEWPORT IN CSS
CSS Device Adaptation
㫮㫭㫠㫜㫮㫧㫦㫩㫫㫔㫲
㫔㫔㫔㫔㫮㫠㫛㫫㫟㫨㫔㫛㫜㫭㫠㫚㫜㫛㫮㫠㫛㫫㫟㫩
㫔㫔㫔㫔㫱㫦㫦㫤㫨㫔㫟㫩
㫔㫔㫔㫔㫤㫠㫥㫛㫱㫦㫦㫤㫨㫔㫟㫩
㫔㫔㫔㫔㫤㫘㫯㫛㫱㫦㫦㫤㫨㫔㫟㫩
㫔㫔㫔㫔㫬㫪㫜㫩㫛㫱㫦㫦㫤㫨㫔㫝㫠㫯㫜㫛㫩
㫔㫔㫔㫔㫦㫩㫠㫫㫜㫥㫫㫘㫫㫠㫦㫥㫨㫔㫧㫦㫩㫫㫩㫘㫠㫫㫩
㫔㫔㫔㫔㫩㫜㫪㫦㫣㫬㫫㫠㫦㫥㫨㫔㫟㫠㫞㫛㫧㫠㫩
㫴

64. @VIEWPORT, @MEDIA AND JS
For example, use the iPhone4,
@viewport use 480px
@media ( max-width: 480px ) will work
"device-width" in the @media told me "320px"
㫛㫦㫚㫬㫤㫜㫥㫫㫜㫛㫦㫚㫬㫤㫜㫥㫫㫘㫣㫜㫤㫜㫥㫫㫜㫦㫝㫝㫪㫜㫫㫘㫠㫛㫫㫟 told me
"480px"
㫪㫚㫩㫜㫜㫥㫜㫮㫠㫛㫫㫟 told me "320px"

65. WTF !
http://www.flickr.com/photos/jannemei/1023015396/

66. @VIEWPORT IN REAL WORLD
visual and layout viewport
A tale of two viewports — part two

67. @VIEWPORT IN REAL WORLD
visual viewport = layout viewport
A tale of two viewports — part two

68. SO, JUST COPY AND PASTE
html5-boilerplate
㫪㫤㫜㫫㫘㫔㫥㫘㫤㫜㫫㫔㫭㫠㫜㫮㫧㫦㫩㫫㫔㫔㫚㫦㫥㫫㫜㫥㫫㫫㫔㫮㫠㫛㫫㫟㫫㫛㫜㫭㫠㫚㫜㫛㫮㫠㫛㫫㫟㫔㫬
or this one,
㫪㫤㫜㫫㫘㫔㫥㫘㫤㫜㫫㫔㫭㫠㫜㫮㫧㫦㫩㫫㫔㫔㫚㫦㫥㫫㫜㫥㫫㫫㫔㫮㫠㫛㫫㫟㫫㫛㫜㫭㫠㫚㫜㫛㫮㫠㫛㫫㫟㫩㫔㫠㫥㫠㫫㫠㫘㫣㫛㫪㫚㫘㫣㫜㫫㫟㫔㫬
or this one,
㫪㫤㫜㫫㫘㫔㫥㫘㫤㫜㫫㫔㫭㫠㫜㫮㫧㫦㫩㫫㫔㫔㫚㫦㫥㫫㫜㫥㫫㫫㫔㫮㫠㫛㫫㫟㫫㫛㫜㫭㫠㫚㫜㫛㫮㫠㫛㫫㫟㫩㫔㫠㫥㫠㫫㫠㫘㫣㫛㫪㫚㫘㫣㫜㫫㫟㫩㫔㫤㫠㫥㫠㫤㫬㫤㫛㫪㫚㫘㫣
㫜㫫㫟㫜㫞㫔㫬

69. RESPONSIVE WEB DESIGN
@VIEWPORT + @MEDIA

70. RWD AND @MEDIA
Maybe you think,
㫔㫔㫔㫔㫤㫦㫙㫠㫣㫜㫔㫮㫜㫙㫔㫧㫘㫞㫜
㫔㫔㫔㫔㫙㫔㫮㫤㫜㫛㫠㫘㫔㫨㫬㫜㫩㫰
㫔㫔㫔㫔㫫㫔㫛㫜㫪㫢㫫㫦㫧㫔㫮㫜㫙㫔㫧㫘㫞㫜
The way we use,
㫔㫔㫔㫔㫛㫜㫪㫢㫫㫦㫧㫔㫮㫜㫙㫔㫧㫘㫞㫜
㫔㫔㫔㫔㫙㫔㫮㫤㫜㫛㫠㫘㫔㫨㫬㫜㫩㫰
㫔㫔㫔㫔㫫㫔㫤㫦㫙㫠㫣㫜㫔㫮㫜㫙㫔㫧㫘㫞㫜

71. RWD AND @MEDIA
Which dimension as starting point ?
Where and how to make breaking points ?
How to test against media features ?
Non-supporting browsers.

72. “
The choice is not between using media queries and
creating a dedicated mobile site; the choice is between
using media queries and doing nothing at all.
That said, in many situations the content you want to
serve up will be the same regardless of context.
--Jeremy Keith
A responsive mind
”

73. RE-THINK ABOUT THE WEB DESIGN
A Dao of Web Design
http://www.flickr.com/photos/tahini/5810915356/

74. SUMMARY, FINALLY
@media based on @viewport size.
RWD depends on media query or Javascript.
DO NOT USE strange setting with @viewport, if you
don'y know why you do.
Use the @media carefully, do the @media style once,
not overwriting at all.
Think about your content again.
DO NOT fight with your visual designer.

75. QUESTION :) ?

76. REFERENCES & RESOURCES
CSS3 Media Queries
Meta Layout: a closer look at media queries
MEDIA QUERIES PRESENTATION AT INDIECONF
ESSENTIAL CONSIDERATIONS FOR CRAFTING QUALITY MEDIA QUERIES
Rethinking the Mobile Web
Responsive Web Design
A dao of Web Design
More about device-pixel-ratio
A tale of two viewports - part two
CSS Device Adaptation
CSS3 Media Queries
Resolution Units
Viewport percentage lengthes
List of displays by pixel density