[CSS] iPad에서 Portrait & Landscape 일때 적용 CSS 예제

iPad에서 Portrait & Landscape 일때 적용 CSS 예제
http://catharsis.tumblr.com/post/501657271/ipad-orientation-css-revised

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.