Image Sprites : http://www.w3schools.com/css/css_image_sprites.asp

An image sprite is a collection of images put into a single image.
A web page with many images can take a long time to load and generates multiple server requests.
Using image sprites will reduce the number of server requests and save bandwidth
- 무슨 말이냐고? 하나의 이미지를 사용하는 이미지 모음을 얘기하는데,
  이를 사용하는 이점은 서버로의 호출을 줄이고 대역폭을 확보하는데 있다.
  이미지 모음을 CSS로 잘라서 사용하라는 말입니다.

예제 1 : http://www.w3schools.com/css/tryit.asp?filename=trycss_sprites_img
예제 2 : http://www.w3schools.com/css/tryit.asp?filename=trycss_sprites_nav
예제 3 : http://www.w3schools.com/css/tryit.asp?filename=trycss_sprites_hover_nav

35 inspiring light and white website designs

Today we have a bit of  inspiration for you, we have selected 35 marvellous light and white website designs. They are made from creative people throught the World. Some websites made by Poles, some by Russians, some by Brazilians, some by Americans and others.  Enjoy the eye-catching designs and feel free to leave your comments and mention your favorites.

1. ArtDesignStock – Art, Design and Stock Portfolio of Levi Szekeres (Romania)

2. Epsdesign – creative and ecological projects of interior design (Italy)

3. Cappen – Digital Agency´s new website. All made using html5 with some nice transitions.(Brasil)

4. designzoom – web design solutions for budget people (Bangalore and Chennai India)

5. Elegant Seagulls is a creative design agency, MI specializing in website design (Marquette)

6. 80-20 Studio conceptualize, research, design, develop and deploy solutions that set new standards in user experience

7. JavaScript for Designers. A minimalist microsite or a one day workshop for webdesigners.

8. Lebensraum Eilenriede is one of the most important municipal forests in Europe, covers an area of roughly 650 hectares.

9. SWIST Event Agency made by Nile Studio

10. Vitaly Shepelev Portfolio

11. People LAB

12. Elliott Kember web designer create cool web site with the game on the background.

13. Tyler Finck. It`s all about web design, video, motio

14. Catch Mail

15. Monster`s school

16. Paradigma communication agency

17. White Space web studio

18. Index – communication agency

19. Ola Marion – design agency

20. MIR is a full-circle creative, design and post production company based in Russia.21. Camp6 provides a range of services from bookkeeping & accounting to website design and development.

22. Creative People – creative design agency

23. Welcome to Demo Slam.

24. The Critical Mass is an interactive data visualisation

25. FlowerOscope. Playing with the concept of  the kaleidoscope.

26. The hidden heroes.

27. Inthel.A website, portfolio and cv for Zamfir Mihnea (Romania)

28. Sold Pink Studio.Taking over the world one gamer at a time. (Australia)

29. A small corporate website for an ad agency

30. Panoplie team tries to provide sensual experiences to the screen.

31. Gluckstuck is a creative designer from germany.

32. The Wilderness Downtown.

33. Stripes design. Portfolio of a web designer from Poland.

34. Mark Sousa webdesigner. Webdesign Portfolio from Brazil.

35. The Elbany. Multi disciplinary arts venue in South East London.

The Top 8 Placeholder Services for Web Designers

1 – PlaceKitten

A quick and simple service for getting pictures of kittens for use as placeholders in your designs or code. Just put your image size (width & height) after our URL and you’ll get a placeholder.

Usage

Follow the placekitten.com url with your desired dimensions. For example, if I needed a 450 x 300 placeholder image, I’d set the source attribute of an image tag to: http://placekitten.com/450/300.

2 – Placehold.it

A quick and simple image placeholder service.

Usage

Note that, with this service, you set your dimensions more traditionally, rather than separating the widths and heights into segments.

Placehold.it is a bit different in that, rather than using photos for placeholders, it instead uses more traditional solid color images, which might be more appealing to some designers.

3 – SheenHolders

Add some Sheen to your designs and prototypes with Charlie Sheen placeholder pictures. Simply change the width and height in the URL to get your custom placeholder.

Usage

If you want your web designs to be winning, then you need the Sheen!

4 – FlickHoldr

Get placeholders related to the site you are developing, by pulling images from flickr based on tags.

Usage

FlickrHolder is helpful in that, in addition to using Flickr photos as the placeholders, it also allows you to choose a desired tag as the third segment. You can even choose to display photos in black and white.

5 – LoremPixum

Placeholder Images for every case. Webdesign or Print. It’s simple and absolutely free!

Usage

6 – PlaceDog

Dogs are so superior to felines. Just choose your dimensions in the pathname and share the doggie love on your projects.

Usage

7 – DummyImage

Usage

DummyImage is particularly nice, when compared to some of its competitors, in that it offers a great deal of flexibility. Let’s take a look at some of the available options.

8 – Griddle.it

A clean and simple way to help align your layouts. No complex grid frameworks necessary.

Certainly, Griddle.it is unique compared to its peers because its focus is on creating grid images, which can then be applied to the background of your web design during production. View a live demo here.

Usage

Applying a background grid requires the following format: http://griddle.it/[total width]-[number of columns]-[gutter size].

iPad Orientation CSS (Revised)

It doesn’t take much foresight to anticipate that with the rise of Natural User Interfaces (NUIs) like the iPhone and iPad, UI designers will have a greater responsibility to optimize for orientation-based contexts. As such, it’s quite prescient that today, the folks at Cloud Four demonstrated how to serve up stylesheets based on device orientation.

Since I have a feeling I’ll be using this quite a bit in the future, I wanted to build on Cloud Four’s work and find a way to alleviate the following issues:

1. Extra HTTP requests
2. Not iPad-specific
3. Lack of reusability

So, without further ado, here’s my proposed revision to the iPad orientation CSS:

<!-- css -->
@media only screen and (max-device-width: 1024px) and (orientation:portrait) { 
    .landscape { display: none; }
}
@media only screen and (max-device-width: 1024px) and (orientation:landscape) { 
    .portrait { display: none; }
}

<!-- example markup -->
<h1 class="portrait">Your device orientation is "portrait"<h1>
<h1 class="landscape">Your device orientation is "landscape"<h1>

As you can see, I’ve also changed the markup in a predictable way. An explanation of the changes and the reasoning behind them can be found below.