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css中使用变量，:root伪元素的使用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...效，不会应用于全局
:root {
--theme-color: red;
}
@media screen and (max-width: 500px) {
:root {
--theme-color: blue;
}
}
.login-page {
color: var(--theme-color);
}
</style>
总结
善用css变量可以提高效率，让我们继续努力，掌握更多新鲜的知识...
Activity启动器（ActivityStarter）如何查看并启动其他App · App Inventor 2 中文网
...是 main=, 紧接着是类名。
如 appinventor.ai_powerhope.HelloPurr.Screen1： main后面去掉最后一个组件即为包名，如 appinventor.ai_powerhope.HelloPurr。
如果要更方便和直观的在手机上查看安装的APP的包名和类名，可以在手机上安装专门的查看应...
iOS Tests/Specs TDD/BDD and Integration & Acceptance Testing
...chini Framework
It is based on UIAutomation.
The framework let you write screen centric scenarios in Cucumber like style.
The scenarios can be executed in Simulator and on device from a console (it is CI friendly).
The assertions are screenshot based. Sounds inflexible, but it gets you nice HTML ...
WatiN or Selenium? [closed]
...e everything, I went with WatiN in the end; I mainly intend to write small screen-scraping applications and want to use LINQPad for development. Attaching to a remote IE instance (one that I did not spawn myself) is a big plus. I can fiddle around in an existing instance...then run a bit of script.....
Why not use always android:configChanges=“keyboardHidden|orientation”?
...
From Android 3.x on don't miss to add "screenSize" ---------- android:configChanges=["mcc", "mnc", "locale", "touchscreen", "keyboard", "keyboardHidden", "navigation", "screenLayout", "fontScale", "...
Build an ASCII chart of the most commonly used words in a given text [closed]
...ta count the elements for us...every box and widget you had to drag to the screen counts.
– dmckee --- ex-moderator kitten
Jul 6 '10 at 5:52
1
...
What is NSLayoutConstraint “UIView-Encapsulated-Layout-Height” and how should I go about forcing it
... problem magically(autolayout complains nothing and I get what I expect on screen):
myTableView.estimatedRowHeight = 2.0; // any number but 2.0 is the smallest one that works
with or without this line:
myTableView.rowHeight = UITableViewAutomaticDimension; // by itself this line only doesn't hel...
How to hide action bar before activity is created, and then show it again?
I need to implement splash screen in my honeycomb app.
I use this code in activity's onCreate to show splash:
27 Answers
...
Read entire file in Scala?
...p sounds great. :) I wouldn't expect it, but I didn't expect output to the screen to be named 'print' either. slurp is fantastic! :) Was fantastic? I don't find it. ;(
– user unknown
Apr 24 '11 at 4:00
...
How to adjust layout when soft keyboard appears
...
friends just to show alignparentbottom="true" if the screen not adjusted properly ..hence i placed that image friend
– Venkatesh S
May 7 '13 at 4:25
...